| Contents: Code words for numbers Old catalouge numbers & corresponding in this catalouge Telephones: Section A: Type AB 100, AB 105, AB 120, AB 122, AB 130, AB 135, AB 140, AB 145, AB 160, AB 165, AB 210, AB 220, AB 230, AB 250, AB 500, AB 510, AB 520, AB 530, AB 650, AB 670, AB 1200, AB 1300, AB 2100, AB 2300, AB 2500, AB 2530, AB 5000, AB 5100, AB 6000, AB 6100, AB 6200, AB 6300, AB 6500. AC 100, AC 110, AC 120, AC 130, AC 140, AC 200, AC 210, AC 300, AC 400, AC 500, AC 1000. AD 100, AD 120, AD 125, AD 200, AD 250. AE 200, AE 250. AF 100, AF 200-231, AF 300, AF 340, AF 500. Section B: BC 1100, BC 1200, BC 1300, BC 1301, BC 1400, BC 2000, BC 2050. BD 100, BD 200. Section C: CD 110, CD 120, CD 140, CD 170, CD 180, CD 540, CD 570, CD 1110, CD 1140, CD 2000. CG 100, CG 300, CG 400, CG 1100, CG 1110. CK 550, CK 650, CK 660, CK 670. CL 500, CL 510, CL 600, CL 610. CM 100 About this material. |
TELEPHONE INSTRUMENTS
Code words for numbers
| 1 Ybad | 16 Ydol | 31 Yhal | 46 Ylos | 110 Ypas | 375 Ysud |
| 2 Ybef | 17 Ydum | 32 Yhem | 47 Ylut | 120 Ypet | 400 Ysyf |
| 3 Ybig | 18 Ydyn | 33 Yhin | 48 Ylyv | 130 Ypiv | 425 Ytax |
| 4 Yboll | 19 Yfah | 34 Yhop | 49 Ymap | 140 Ypox | 450 Yteb |
| 5 Ybuk | 20 Yfek | 35 Yhur | 50 Ymer | 150 Ypub | 475 Ytic |
| 6 Ybyl | 21 Yfil | 36 Yhys | 55 Ymis | 160 Ypyc | 500 Ytod |
| 7 Ycaf | 22 Yfom | 37 Ykam | 60 Ymot | 170 Yrat | 550 Ytuf |
| 8 Yceg | 23 Yfun | 38 Yken | 65 Ymuv | 180 Yrev | 600 Ytyg |
| 9 Ycih | 24 Yfyk | 39 Ykip | 70 Ymyx | 190 Yrix | 650 Yvab |
| 10 Ycok | 25 Ygak | 40 Ykor | 75 Ynar | 200 Yrob | 700 Yvec |
| 11 Ycul | 26 Ygel | 41 Ykus | 80 Ynes | 225 Yruc | 750 Yvid |
| 12 Ycym | 27 Ygim | 42 Ykyt | 85 Ynit | 250 Yryd | 800 Yvof |
| 13 Ydag | 28 Ygon | 43 Ylan | 90 Ynov | 275 Ysav | 850 Yvug |
| 14 Ydeh | 29 Ygup | 44 Ylep | 95 Ynux | 300 Ysex | 900 Yvyh |
| 15 Ydik | 30 Ygyr | 45 Ylir | 100 Ynyb | 325 Ysib | 950 Yxae |
| 350 Ysoc | 1000 Yxed |
The words with four letters in the above table should be used together with the code words with six letters in this catalogue, for inst. Ydikabadyn = 15 instruments AB 140.
Table of old catalogue numbers and corresponding numbers in this catalogue
| NO. 301 AB 210 | NO. 320 AB 500 | NO. 361 AB 250 | NO. 395 AC 1000 | NO. 441 AB 6000 |
| 305 AB 100 | 321 AB 505 | 365 AB 2500 | 400 BC 2000 | 442 AB 6100 |
| 306 AB 105 | 325 AD 100 | 366 CD 140 | 402 BC 2050 | 443 AB 6500 |
| 310 AB 140 | 330 AD 200 | 370 AC 100 | 405 BC 1300 | 445 AB 5000 |
| 311 AB 145 | 335 AD 250 | 375 AC 110 | 406 BC 1301 | 450 AF 210 |
| 315 AB 220 | 340 AB 130 | 380 AC 210 | 408 BC 1400 | 455 AF 220 |
| 316 AB 120 | 345 AB 530 | 381 AC 300 | 410 BC 1100 | 460 AF 300 |
| 317 AB 122 | 346 AB 590 | 383 AC 310 | 415 BC 1200 | 465 AF 340 |
| 318 AB 160 | 350 AB 650 | 385 AC 200 | 435 AF 100 | 855 AB 5100 |
| 319 AB 165 | 355 AB 230 | 388 CG 1100 | 440 AF 200 |
Type AB 100-105
Magneto wall telephones
Type AB 100(Old Cat. No. 305)
Framework polished walnut.
Transmitter RC 120 on arm RC 55o.
Receiver RD 200 (No. 549) with cord RS 4700 (No. 2036) suspended on switch-hook.
Generator RH 2100, 2-magnet, which will ring satisfactorily through the ringer and
a line resistance of 5000 ohms.
Ringer: 100 ohms resistance.
Height of Backboard: 445 mm.
Width of Backboard: 170 mm.
Weight 4,0 kg.
Codeword: Ababab.
Type AB 105
(Old Cat. No. 306)
Framework polished walnut.
Transmitter RC 120 on arm RC 550.
Receiver RD 200 (No. 549) with cord RS 4700 (No. 2036) suspended on switch-hook.
Generator RH 3100, 3-magnet, which will ring satisfactorily through the ringer
and a line resistance of 15ooo ohms.
Ringer 300 ohms resistance.
Height of Backboard: 445 mm.
Width of Backboard: 170 mm.
Weight: 4,5 kg.
Codeword: Ababif.
Type AB 120-122
Magneto wall telephones
Type AB 120
(Old Cat. No. 316)
Framework polished walnut.
Micro-telephone RE 4000 (No. 532), with cord RS 6000 suspended on switch-hook.
Generator RH 2100, 2-magnet, which will ring satisfactorily through the ringer
and a line resistance of 5000 ohms.
Ringer 100 ohms resistance.
Height of Backboard: 415 mm.
Width of Backboard: 170 mm.
Weight: 4,1 kg.
Codeword: Ababuk.
Type AB 122
(Old Cat. No. 317)
Framework polished walnut.
Micro-telephone RE 4000 (Not. 532) with cord RS 6000 suspended on switch-hook.
Generator RH 3100, 3-magnet, which will ring satisfactorily through the ringer
and a line resistance of 15000 ohms.
Ringer 300 ohms resistance.
Height of Backboard: 415 mm.
Width of Backboard: 170 mm.
Weight: 4.6 kg.
Codeword: Abacig.
Type AB 130
Magneto wall telephone
(Old Cat. No. 340)
Framework polished walnut.
Micro-telephone RE 4000 (No. 532) with cord RS 6000 suspended on switch-hook.
Generator RH 3150, 3-magnet, which will ring satisfactorily through the ringer
and a line resistance of 20000 ohms.
Ringer 300 ohms resistance.
This telephone is fitted with a paper clip.
Height of Backboard: 495 mm.
Width of Backboard: 215 mm.
Weight: 6,2 kg.
Codeword: Abadal.
Type AB 135
Magneto wall telephone
Framework polished walnut.
Micro-telephone RE 1050, (No. 529) with cord RS 6500 (No. 2061), resting on
cradle switch.
Generator RH 3150, 3-magnet, which will ring satisfactorily through the
ringer and a line resistance of 20000 ohms.
Ringer 300 ohms resistance.
This telephone is fitted with a paper clip and enclosed line terminals.
Height of Backboard: 490 mm.
Width of Backboard: 215 mm.
Weight: 6,5 kg.
Code word: Abadik.
Type AB 140-145
Magneto wall telephones
Type AB 140
(Old. Cat. No. 310)
Framework polished walnut constructed to hold 2 cells RK 240 or RK410
(Old. Cat. No. 596 or 590).
Transmitter RC 120 on arm RC 550.
Receiver RD 200 (No. 549) with cord RS 4700 (No. 2036) suspended on
switch-hook.
Generator RH 2100, 2-magnet, which will ring satisfactorily through the
ringer and a line resistance of 5000 ohms.
Ringer 100 ohms resistance.
Height of Backboard: 605 mm.
Width of Backboard: 170 mm.
Weight 4,7 kg.
Codeword: Abadyn.
Type AB 145
(Old Cat. No. 311)
Framework polished walnut, constructed to hold 2 cells RK 240 or RK 410 (Old Cat.
No. 596 or 590).
Transmitter RC 120 on arm RC 550.
Receiver RD 200 (No. 549) with cord RS 4700 (No. 2036) suspended on
switch-hook.
Generator RH 3100, 3-magnet which will ring satisfactorily through the ringer and
a line resistance of 15000 ohms.
Ringer 300 ohms resistance.
Height of Backboard: 605 mm.
Width of Backboard: 170 mm.
Weight: 5,2 kg.
Codeword: Abafil.
Type AB160-165
Magneto wall telephones
Type AB 160
(Old Cat. No. 318)
Framework polished walnut, constructed to hold 2 cells RK 240
or RK 410 (Old Cat. No. 596 or 590).
Micro-telephone RE 4050 (No. 530) with cord RS 6500 (No. 2061)
suspended on switch-hook.
Generator RH 2100, 2-magnet, which will ring satisfactorily
through the ringer and a line resistance of 5000 ohms.
Ringer 100 ohms resistance.
Height of Backboard: 575 mm.
Width of Backboard: 170 mm.
Weight: 4,8 kg.
Codeword: Abafun.
Type AB 165
(Old Cat. No. 319)
Framework polished walnut, constructed to hold 2 cells RK 240 or RK 410 (Old Cat. No. 596 or 590).Micro-telephone RE 4050 (No. 530) with cord RS 6500 (No. 2061) suspended on switch-hook.
Generator RH 3100, 3-magnet, which will ring satisfactorily through the ringer and a line resistance of 15000 ohms.
Ringer 300 ohms resistance.
Height of Backboard: 575 mm.
Width of Backboard: 170 mm.
Weight: 5,3 kg.
Codeword: Abagim.
Type AB 210
Magneto wall telephone
(Old. Cat. No. 301.)
Framework polished walnut, constructed to hold 2 cells RK 240 or RK 410
(Old Cat. No. 506 or 590).
Transmitter RC 120 on arm RC 500.
Receiver RD 110 (No. 546) with cord RS 4300 (No. 2030) suspended on
switch-hook.
Generator RH 3150, 3-magnet, which will ring satisfactorily through the ringer
and a line resistance of 20000 ohms.
Ringer 300 ohms resistance.
This telephone is fitted with a paper clip.
Height of Backboard: 720 mm.
Width of Backboard: 215 mm.
Weight: 7,2 kg.
Codeword: Abalby.
Type AB 220
Magneto wall telephone
(Old Cat. No. 315.)
Framework polished walnut, constructed to hold 2 cells RK 240 or RK 410 (Old Cat. No. 596 or 590).Transmitter RC 120 on arm RC 520.
Receiver RD 110 (No. 546) with cord RS 4300 (No. 2030) suspended on switch-hook.
Generator RH 3150, 3-magnet, which will ring satisfactorily through the ringer and a line resistance of 20000 ohms.
Ringer 300 ohms resistance.
This telephone is fitted with a paper clip.
Height of Backboard: 720 mm.
Width of Backboard: 215 mm.
Weight: 7,5 kg.
Codeword: Abalme.
Type AB 230
Magneto wall telephone
(Old Cat. No. 355.)
Framework polished walnut, constructed to hold 2 cells RK 240 or RK 410
(Old Cat. No. 596 or 590).
Micro-telephone RE 4050 (No. 530) with cord RS 6500 (No. 2061) suspended on
switch-hook.
Generator RH 3150, 3-magnet, which will ring satisfactorily through the ringer
and a line resistance of 20000 ohms.
Ringer 300 ohms resistance.
This telephone is fitted with a paper clip.
Height of Backboard: 660 mm.
Width of Backboard: 215 mm.
Weight: 7,0 kg.
Codeword: Abamen.
Type AB 250
Magneto wall telephone
(Old Cat. No. 361)
Framework polished walnut constructed to hold 2 cells RK 200
(Old Cat. No. 597).
Micro-telephone RE 1050 (No. 529) with cord RS 6500 (No. 2061)
resting on cradle switch.
Generator RH 3150, 3-magnet, which will ring satisfactorily
through the ringer and a line resistance of 20000 ohms.
Ringer 300 ohms resistance
This telephone is fitted with a paper clip and enclosed line terminals.
Height of Backboard: 715 mm.
Width of Backboard: 215 mm.
Weight: 7,9 kg.
Codeword: Abamoq.
Type AB 500-505
Magneto wall telephones
Framework polished walnut, constructed to hold 2 cells RK 220 or RK 400
(Old Cat. Nos. 595 or 585).
Transmitter RC 120 on arm RC 520.
Receiver RD 110 (546) with Cord RS 4300 (No. 2030) suspended on
switch-hook.
Generator for type, see table below.
These generators will ring satisfactorily through the ringer and a line resistance
of 25000 ohms.
Ringer for resistance, see table below.
Press button. For short circuiting the induction coil & cutting out the
ringer.
These instruments are fitted with a paper clip.
Height of Backboard: 770 mm.
Width of Backboard: 250 mm.
| Type | Old Catalogue No. | Generator | No. of Magnets | Resistance of Ringer ohm | Weight kg. | Codeword |
| AB 500 | 320 | RH 4160 | 4 | 300 | 9,0 | Abanor |
| AB 501 | - | RH 4600 | 4 | 1000 | 9,0 | Abanyt |
| AB 505 | 321 | RH 5600 | 5 | 2000 | 9,5 | Abapir |
Type AB 510-515
Magneto wall telephones
Framework polished walnut, constructed to hold 2
cells RK 220 or RK 400 (Old Cat. Nos. 595 or 585).
Transmitter RC 120 on adjustable arm RC 660.
Receiver RD 110 (No. 546) with cord RS 4300 (No. 2030) suspended on
switch-hook.
Generator for type, see table below.
These generators will ring satisfactorily through the ringer and a line resistance
of 25000 ohms.
Ringer for resistance, see table below.
These instruments have enclosed line terminals and are fitted with a paper clip.
Height of Backboard: 760 mm.
Width of Backboard: 250 mm.
| Type | Generator | No. of Magnets | Resistance of ringer | Weight kg | Codeword |
| AB 510 | RH 4160 | 4 | 300 | 8,3 | Abaris |
| AB 511 | RH 4600 | 4 | 1000 | 8,3 | Abarot |
| AB 515 | RH 5600 | 5 | 2000 | 8,8 | Abasov |
Telephones AB 511 and AB 515 are each provided with a press button for cutting out the
ringer coils and short circuiting the induction coil.
If specially ordered we supply telephones AB 511 and AB 515 without the above
press button and with the connection so arranged that the ringer coils are cut out when
the generator is operated.
Type AB 520
Magneto wall telephone
Framework polished walnut, constructed to hold 2 cells
RK 220 or RK 400 (Old Cat. No. 595 or 585).
Micro-telephone RE 4050 (No. 530) with cord RS 6500 (No. 2061) suspended on
switch-hook.
Generator RH 3150, 3-magnet, which will ring satisfactorily through the ringer
and a line resistance of 20000 ohms.
Ringer 300 ohms resistance.
This telephone is fitted with a paper clip.
Height of Backboard: 715 mm.
Width of Backboard: 250 mm.
Weight: 7,8 kg.
Codeword: Abativ.
Type AB 530-590
Magneto wall telephones
Framework polished walnut, constructed to hold 2 cells RK 220 or RK 400
(Old Cat. No. 595 or 585).
Micro-telephone RE 4050 (No. 530) with cord RS 6500 (No. 2061) suspended
on switch-hook.
Generator for type, see table below.
These generators will ring satisfactorily through the ringer and a line resistance
of 25000 ohms.
Ringer for resistance, see table below.
Press button for short circuiting the induction coil and cutting out the
ringer coil.
These instruments are fitted with a paper clip.
Height of Backboard: 715 mm.
Width of Backboard: 250 mm.
| Type | Old Catalogue No. | Generator | No. of Magnets | Resistance of Ringer | Weight kg. | Codeword |
| AB 530 | 345 | RH 4160 | 4 | 300 | 8,7 | Abbabo |
| AB 535 | - | RH 4600 | 4 | 1000 | 8,7 | Abbafu |
| AB 590 | 346 | RH 5600 | 5 | 2000 | 9,2 | Abbali |
If specially ordered we supply telephone AB 535 and AB 590 without a press button but with the connection so arranged that the ringer coils are cut out when the generator is operated.
Type AB 650-655
Magneto wall telephones
Framework polished walnut constructed to hold 2 cells RK 220 or RK 400 (Old Cat.
No. 595 or 585).
Micro-telephone RE 1050 (No. 529) with cord RS 6500 (No. 2061) resting on cradle
switch.
Generator for type, see table below.
These generators will ring satisfactorily through the ringer and a line resistance of
25000 ohms.
Ringer for resistance, see table below.
Press button for short circuiting the induction coil and cutting out the ringer
coil.
These Instruments are fitted with a paper clip.
Height of Backboard: 715 mm.
Width of Backboard: 250 mm.
| Type | Old Catalogue No. | Generator | No. of Magnets | Resistance of Ringer | Weight kg. | Codeword |
| AB 650 | 350 | RH 4160 | 4 | 300 | 9,1 | Abbfir |
| AB 651 | - | RH 4600 | 4 | 1000 | 9,1 | Abbfos |
| AB 655 | - | RH 5600 | 5 | 2000 | 9,6 | Abbger |
If specially ordered we supply telephones AB 651 and AB 655 without the press button but with the connection so arranged, that the ringer coils are cut out when the generator is operated.
Type AB 670-675
Magneto wall telephones
Framework of polished walnut, constructed to hold 2 cells RK 220 or RK 400
(Old Cat. No. 595 or 585).
Micro-telephone RE 1050 (No. 529), with cord RS 6500
(No. 2061) resting on cradle switch.
Generator for type, see table below. These generators will
ring satisfactorily through the ringer and a line resistance of 25000 ohms.
Ringer for resistance, see table below.
These telephones have enclosed line terminals, and are fitted with a paper clip.
Height of Backboard: 705 mm.
Width of Backboard: 250 mm.
| Type | Generator | No. of Magnets | Resistance of ringer | Weight kg | Codeword |
| AB 670 | RH 4160 | 4 | 300 | 8,8 | Abbias |
| AB 671 | RH 4600 | 4 | 1000 | 8,8 | Abbict |
| AB 675 | RH 5600 | 5 | 2000 | 9,3 | Abbkat |
Telephones AB 671 & AB 675 are provided with a press button for cutting out the ringer
coils and short circuiting the induction coil.
If specially ordered we supply these two telephones without press button but with the
connections so arranged that the ringer is cut out when the generator is operated.
Type AB 1200-1220
Magneto wall telephones
Case black enamelled steel.
Micro-telephone RE 4000 (Old Cat. No. 532) with cord RS 6000
suspended on switch-hook.
Generator for type & resistance through which the generator
rings satisfactorily, see table below.
Ringer for resistance, see table below.
These telephones have enclosed line terminals.
Height of Backboard: 510 mm.
Width of Backboard: 190 mm.
| Type | Generator | No. of Magnets | Generator rings thro´ a line resistance of | Resistance of ringer | Weight kg | Codeword |
| AB 1200 | RH 2400 | 2 | 5000 | 100 | 5,6 | Abikap |
| AB 1205 | RH 3231 | 3 | 20000 | 300 | 6,0 | Abikos |
| AB 1220 | RH 4450 | 4 | 25000 | 300 | 6,4 | Abilot |
Type AB 1300-1320
Magneto wall telephones
Case black enamelled steel.
Micro-telephone RE 1000 with cord RS 6000 resting on cradle switch.
Generator for type & line resistance through which it will ring satisfactorily,
see table below.
Ringer for resistance, see table below.
These instruments have enclosed line terminals.
Height of Backboard: 510 mm.
Width of Backboard: 190 mm.
| Type | Generator | No. of Magnets | Generator rings thro´ a line resistance of | Resistance of ringer | Weight kg | Codeword |
| AB 1300 | RH 2400 | 2 | 5000 | 100 | 5,8 | Abimas |
| AB 1305 | RH 3231 | 3 | 20000 | 300 | 6,4 | Abimox |
| AB 1320 | RH 4450 | 4 | 25000 | 300 | 6,8 | Abinat |
Type AB 2100-2120
Magneto wall telephones
Case black enamelled steel, constructed to hold 2 dry cells RK 210.
Inset transmitter RC 180 on adjustable arm RC 650.
Receiver RD 600 with cord RS 4050 (Old Cat. No. 2382) suspended on switch-hook.
Generator for type, see table below.
These generators will ring satisfactorily through the ringer and a line resistance of
25000 ohms.
Ringer for resistance, see table below.
These telephones have enclosed line terminals.
Height of Backboard: 565 mm.
Width of Backboard: 200 mm.
| Type | Generator | No. of Magnets | Resistance of ringer | Weight kg | Codeword |
| AB 2100 | RH 4400 | 4 | 300 | 7,8 | Abiqib |
| AB 2105 | RH 4400 | 4 | 1000 | 7,8 | Abisab |
| AB 2120 | RH 5500 | 5 | 2000 | 8,2 | Abisog |
Telephones AB 2105 and AB 2120 are provided with a press button for cutting out
the ringer coils & short circuiting the induction coil.
If specially ordered we supply these two telephones with the connection
so arranged, that the bell on the telephone will not ring when the generator is being
operated. In this case no press button is provided.
Type AB 2300-2320
Magneto wall telephones
Case black enamelled steel, constructed to hold 2 dry cells RK 210.
Micro-telephone RE 1002 with cord RS 6020 (No. 2411) resting on cradle switch.
Generator for type, see table below.
These generators will ring satisfactorily through the ringer and a line resistance of
25000 ohms.
Ringer for resistance see table below.
These telephones have enclosed line terminals.
Height of Backboard: 565 mm.
Width of Backboard: 200 mm.
| Type | Generator | No. of Magnets | Resistance of ringer | Weight kg | Codeword |
| AB 2300 | RH 4400 | 4 | 300 | 7,6 | Aboceg |
| AB 2305 | RH 4400 | 4 | 1000 | 7,6 | Abocle |
| AB 2320 | RH 5500 | 5 | 2000 | 8,0 | Abocurn |
Telephones AB 2305 and AB 2320 are provided with a
press button for cutting out the ringer coils and short circuiting the induction coil.
If specially ordered we supply these two types with the connections so
arranged that the bell on the telephone does not ring when the generator is operated. In
this case no press button is provided.
Type AB 2500
Magneto wall telephone
(Old Cat. No. 365)
Case enamelled cast iron mounted on a walnut backboard.
Micro-telephone RE 4004 with ebonite handle and cord RS 6000
suspended on switch-hook.
Generator, 3-magnet, which will ring satisfactorily through the
ringer and a line resistance of 20000 ohms.
Ringer. The resistance of coil is 300 ohms.
This telephone is provided with a writing tablet.
Height of Backboard: 400 mm.
Width of blackboard: 175 mm.
Weight: 6,9 kg
Codeword. Abodom.
Type AB 2530-2535
Magneto telephones for mines
Case cast iron, enamelled.
Micro-telephone RE 9210 suspended on switch-hook, complete with waterproof cord
RS 6100 (No. 2495), which cord is protected by a flexible metal tube, transmitter of the
interchangeable inset type without a mouthpiece, and with enclosed terminals.
Generator for type, see table below.
These generators will ring satisfactorily through the ringer and a line
resistance of 25000 ohms.
Ringer for resistance, see table below.
Battery 2 dry cells RK 190 (Old Cat. No. 600).
This instrument is divided into two portions.
When the door of the case is un-latched & opened, the micro-telephone
clamped on the switch-hook with its flexible cord and the generator crank are all that is
exposed to view, see Fig. 2.
The inner portion, which is watertight, contains the generator, batteries,
induction coil and line terminals etc.
Incoming wires are led in to the terminals through 2 holes on the top side
of the telephone, these holes being so formed that they may be hermetically closed by filling
in with some suitable paste or compound, after the wires have been led in.
These holes are also threaded at the top, thus permitting iron or other tubes to be
screwed on to protect the wires, if desired.
In consequence of these special arrangements this telephone is very suitable for use
in mines, streets or other places which are exposed to damp.
| Type | Generator | No. of Magnets | Resistance of ringer | Codeword |
| AB 2530 | RH 4110 | 4 | 300 | Alapan |
| AB 2535 | RH 5201 | 5 | 2000 | Alaper |
Overall Dimensions:
Length: 440 mm.
Width: 275 "
Depth: 165 "
Weight: 26 kg.
Type AB 5000
Magneto wall telephone with special protection against high-tension currents
(Old Cat. No. 445)
Framework polished walnut, lined on the inside with tinned iron sheets which are
connected to the earth terminal.
Dummy micro-telephone suspended on switch-hook.
The transmitter & receiver are enclosed in the case, the sound being carried by means
of 2 vulcanized rubber tubes to the dummy micro-telephone.
The length of the rubber tubes is 1 meter.
Generator RH 5200, 5-magnet, which rings satisfactorily through the ringer and a
line resistance of 25000 ohms.
Ringer. The resistance of the coils is 2000 ohms.
Battery. Two dry cells RK 240 (Old Cat. No. 596).
Carbon protector for 1 metallic line with carbons SA 300.
2 Heat coils SC 10 (No. 703).
All exposed metal parts are insulated, the generator crank being made of ebonite, and the
switch-hook is insulated by means of ebonite.
This telephone is specially designed for use in places where there is any risk of the
telephone lines being brought into contact with lines carrying high tension currents.
Dimensions: 550 X 380 X 190 mm.
Weight: 17,5 kg.
Codeword: Alaros.
This Telephone should be protected by using a double pole fuse SD 50
(Old Cat. No. 748)
which consists of two fuses SB 100 mounted on a marble base and provided with an enamelled
iron cover. The latter is connected to the earth terminal.
Overall dimensions of mounted fuses: 405 X 145 X 115 mm.
Weight: 3,5 kg.
Codeword: Stasso.
It should be noted that when a telephone line is run on the same poles as a high tension
conductor, the disturbances front the conductors can be reduced by using a discharge
coil.
 |
 |
 |
| SH 10 | SH 20 | SH 20 |
Those tabulated below are very suitable for the purpose.
| Type | Old Catalogue No. | Dimensions | Weight kg. | Codeword |
| SH 10 | 706 | 115 X 167 X 120 | 2,14 | Stegot |
| SH 20 | - | 74 X 158 X 95 | 1,26 | Steile |
Discharge coil SH 10 is fitted with a lightning protector and SH 20 is provided with a laminated iron core, by means of which the effect of a well balanced line is obtained.
Type AB 5100
Wall telephone and sounder combined for use on telegraph lines
(Old Cat. No. 855)
Framework polished walnut.
Micro-telephone RE 6010 with cord RS 8001 (No. 2142) suspended on fixed hook.
Buzzer with condenser & press button for giving buzzer
signals.
Howler for receiving buzzer signals.
2 Line condensers.
This instrument is intended for telegraphic as well as telephonic communication, the
latter by means of the buzzer, and can be used for either single or metallic circuits. The
buzzer is used for calling.
When a metallic circuit is used, the two sides of the line are connected to the
terminals L1, L2, but when a single line circuit is used, the line is connected
to the terminal L1, terminal J1 is connected by means of a "strap"
to J and terminal L2 is not connected.
Height of Backboard: 260 mm.
Width of Backboard: 150 mm.
Weight: 2,2 kg.
Codeword: Alasis.
Type AB 6000
Automatic call-box for use in connection with any ordinary telephone
(Old Cat. No. 441)
The box is made of black enamelled steel and is complete with a counter, buzzer &
cash box (inside dimensions 117 X 83 X 62 mm) and it is suitable for coins with a diameter
of 30-33 mm.
The exchange is called in the ordinary way by the telephone & after receiving
instructions from the operator, the coin is inserted in the slot and a crank turned half
a revolution. This gives a signal by means of the buzzer to the operator which indicates
that payment has been made.
Height: 210 mm.
Width: 135 mm.
Weight: 1,25 kg.
Codeword: Alatev.
Type AB 6100
Automatic call-box for use in connection with any ordinary telephone
(Old Cat. No. 442)
The box is made of enamelled cast iron, and is complete with: a cash box (inside
dimensions: 114 X 34 X 66 mm) and it is suitable for small or large coins.
The exchange is called in the ordinary way by the telephone. After receiving instructions
from the operator, the coin is placed in the slot & in dropping strikes against a spring
which is thus made to vibrate. These vibrations inform the operator that payment has been
made.
Height: 210 mm.
Width: i6o mm.
Weight: 2,5 kg.
Codeword: Alatyd.
Type AB 6200
Automatic call-box for use in connection with any ordinary telephone
The box is made of black enamelled steel and is complete with a cash box (inside
dimensions 114 X 34 X 66 mm) and is suitable for small and large coins.
The exchange is called in the ordinary way by the telephone. After receiving instructions
from the operator, the coin is inserted into the slot & in falling it strikes against
a spring which is thus made to vibrate. These vibrations inform the operator that payment
has been made.
Height: 225 mm.
Width: 160 mm.
Weight: 2,11 kg.
Codeword: Alavob.
Type AB 6300
Meter
This meter is for recording the number of calls a subscriber makes and
can be used in connection with any ordinary magneto telephone.
The Exchange is called in the usual way, and the button must be pressed after receiving
instructions from the operator.
By pressing the button, the meter is operated, the call recorded, and the Exchange notified
of the fact by means of a buzzer signal.
Should the button be pressed by mistake, the microtelephone or the receiver not having been
removed from it's hook or cradle, no call will be recorded on the meter.
Overall dimensions.
Height: 115 mm.
Width: 50 mm.
Weight: 0,39 kg.
Codeword: Alavyx.
Type AB 6500
Combined magneto wall telephone and automatic call-box
(Old Cat. No. 443)
Framework polished walnut, constructed to hold 2 cells RK 220 (Old Cat. No.595).
Micro-telephone RE 4050 (No. 530) with cord RS 6500 (No. 2061) suspended on
switch-hook.
Generator RH 4700, 4-magnet, which will ring satisfactorily through the ringer
and a line resistance of 25000 ohms.
Ringer. The resistance of the coils is 300 ohms.
2 press buttons are provided.
Cash box fitted below the battery box. Its volume is about 0,8 cubic decimetres.
This telephone is fitted with a paper clip and enclosed line terminals and is suitable
for coins which have a diameter of not more than 22 mm. With this telephone, the exchange
cannot be called until the coin has been put in the slot.
If the number required is engaged, the calling subscriber must press the button on the
left hand side of the telephone, when the coin will be restored to him.
If the operator informs the subscriber that the number asked for is free, the button on
the right hand side must be pressed, which allows the coin to drop into the cash box.
In falling the coin will strike on to a spring which is thus made to vibrate, & this
informs the operator that payment has been made.
Height of Backboard: 835 mm.
Width of Backboard: 250 mm.
Weight: 10,8 kg.
Codeword: Alaxof.
Type AC 100
Magneto table telephone
(Old Cat. No. 370)
Transmitter RC 120 fixed on adjustable arm RC 521.
Receiver RD 110 (Old Cat. No. 546) on switch-hook with cord RS 4300
(No. 2030), flexible cable RS 9600 (No. 2150) and terminal block with disc protector.
Generator, 2-magnet, which will ring satisfactorily through the ringer and a
line resistance of 12000-15000 ohms.
The magnets of the generator also form the legs of the telephone.
Ringer. The resistance of the coils is 300 ohms.
Weight: 5,5 kg.
Codeword: Alibab.
Type AC 110
Magneto table telephone
(Old Cat. No. 375)
Micro-telephone RE 2002 (Old Cat. No. 520) resting oil cradle switch, with cord
RS 7021 (Old Cat. No. 2252), flexible cable RS 9600 (No. 2150), which is connected to
terminals fitted under the ebonite base plate, and terminal block with disc protector.
Generator, 2-magnet, which will ring satisfactorily through the ringer and a
line resistance of 12000-15000 ohms.
The magnets of the generator also form the legs of the telephone.
Ringer. The resistance of the coils is 300 ohms.
Weight: 5,3 kg.
Codeword: Alibif.
Type AC 120
Magneto table telephone
Micro-telephone RE 2002 (Old Cat. No. 520) resting on cradle switch, with cord
RS 7021 (Old Cat. No. 2252), flexible cable RS 9600 (No. 2150) and terminal block with disc
protector.
The flexible cable is connected to terminals fitted under the ebonite base plate of the
telephone.
Generator, 2-magnet, which will ring satisfactorily through the ringer and a
line resistance of 12000-15000 ohms and provided with spindle movable in a longitudinal
direction with plate spring as per diagram Fig. 2.
The magnets of this generator also form the legs of the telephone.
Ringer. Resistance of coils 1000 ohms.
Press-button for cutting out the ringer coils and short circuiting the induction
coil.
Weight: 5,3 kg.
Codeword: Alibog.
Type AC 130-140
|
| Fig. 1 (AC 140) |
Magneto table telephones
Type AC 130
Micro-telephone RE 2002 (Old Cat. No. 520) resting on a cradle switch,
with cord RS 7021 (Old Cat. No. 2252), flexible cable RS 9600 (Old Cat. No. 2150) connected to
terminals fitted under the ebonite base plate of the telephone & terminal block with disc
protector.
Generator, 2-magnet, which will ring satisfactorily through the ringer and a line
resistance of 12000-15000 ohms.
The generator is fitted with a "cut-out" with plate spring which is effected
through the longitudinal movement of the spindle as per Fig. 2. The magnets of the generator
also form the legs of the telephone.
Ringer resistance of coils 1000 ohms.
The connections are so arranged that the bell in the telephone remains silent while the
generator is being operated.
Weight: 5,3 kg.
Codeword: Alibuk.
Type AC 140
Micro-telephone RE 2002 (Old Cat. No. 520), resting on a cradle switch, with cord
RS 7021 (Old Cat. No. 2252), flexible cable RS 9610 connected to line terminals
fitted on the back edge of the ebonite base plate and terminal block with disc protector.
Generator, 2-magnet, which will ring satisfactorily through the ringer and a
line resistance of 12000-15000 ohms.
The generator is fitted with a "cut-out" with spiral spring which is
effected through the longitudinal movement of the spindle as per diagram Fig. 3.
The magnets of the generator also form the legs of the telephone.
Ringer resistance of coils 1000 ohms.
The connections are so arranged that the bell in the telephone remains silent while
the generator is being operated.
Weight: 5,3 kg.
Codeword: Alibyl.
Type AC 200
Magneto table telephone
(Old Cat. No. 385)
Micro-telephone RE 2002 (Old Cat. No. 520) resting on a cradle switch, with cord
RS 7021 (No. 2252), flexible cable RS 9610 (No. 2068) and terminal block with
disc protector.
Generator, 2-magnet, which will ring satisfactorily through the ringer and a line
resistance of 12000-15000 ohms.
This generator is fitted with 2 cranks.
The magnets also form the legs of the telephone.
Ringer. Resistance of coils: 300 Ohms.
Weight: 5,3 kg.
Codeword: Alicig.
Type AC 210
Magneto table telephone
(Old Cat. No. 380)
Micro-telephone RE 2002 (Old Cat. No.520) resting on a cradle switch with cord
RS 7021 (No. 2252), flexible cable RS 9600 (No. 2150) and terminal block with disc
protector.
Generator, RH 2351, 2-magnet, which will ring satisfactorily through the ringer
and a line resistance of 5000 ohms.
Ringer. The resistance of the coils is 200 ohms.
The base & top-plate of this telephone are made of polished wood, the centre portion
of enamelled steel.
Weight: 3,75 kg.
Codeword: Alidaf.
Type AC 300-320
Magnet table telephones
Micro-telephone RE 1004 resting on a cradle switch, with cord
RS 6010, flexible cable (for type see table below) & terminal block with disc protector.
Generator (see table below).
Ringer (see table below).
The base & top plate are made of ebonised pear-tree wood, and the sides of black
enamelled steel.
If preferred & without extra cost we supply these telephones enamelled to imitate
walnut.
At an extra cost we supply these types with 2 cranks.
| Type | Old Catalogue No. | Generator | Number of magnets | Generator will ring the bell thro' a resistance of Ohm | Resistance of ringer Ohm | Flexible cable | Weight Kg | Codeword |
| AC 300 | 381 | RH 3250 | 3 | 20000 | 300 | RS 9500 (No. 2187) | 5 | Alidyn |
| AC 310 | 383 | RH 4420 | 4 | 25000 | 300 | RS 9500 (No. 2187) | 5,2 | Alifil |
| AC 320 | - | RH 4420 | 4 | 25000 | 1000 | RS 9620 (No. 2260) | 5,2 | Alifun |
Telephone AC 320 is provided with a press button for cutting out the ringer coils &
short circuiting the induction coil.
If specially ordered we supply this telephone without the press button but with the connection
so arranged that the ringer is cut out when the generator is operated.
Type AC 400-440
Magneto table telephones
Micro-telephone RE 1004 resting on a cradle switch with cord RS 6010, flexible cable
RS 9620 (No. 2260) & terminal block with disc protector.
Generator (see table below).
Ringer (see table below).
This telephone has enclosed line terminals, and its base & side are made of black
enamelled steel, and the top-plate of ebonised pear-tree wood.
If required and without extra cost, we can supply these types with the case enamelled
to imitate walnut, and at an extra cost, we can supply them with two cranks.
| Type | Generator | Number of magnets | Generator will ring the bell thro' a resistance of Ohm | Resistance of ringer Ohm | Weight Kg | Codeword |
| AC 400 | RH 3255 | 3 | 20000 | 300 | 4,8 | Aligel |
| AC 410 | RH 4500 | 4 | 25000 | 300 | 5,2 | Aligim |
| AC 420 | RH 4500 | 4 | 25000 | 300 | 5,2 | Alimen |
| AC 440 | RH 4500 | 4 | 25000 | 1000 | 5,2 | Alinor |
Telephones AC 420 and AC 440 are each provided with a press button, for cutting out the
ringer coils and short circuiting the induction coil.
If specially ordered we supply telephone AC 440 with the connections so arranged that the
ringer coils are cut out when the generator is operated, and in this case the press button is
not provided.
Type AC 500-540
Magneto table telephones
Micro-telephone RE 1004 resting on a cradle switch with cord RS 6010, flexible cable
RS 9620 (No. 2260) and terminal block with disc protector.
Generator (see table below).
Ringer (see table below).
The base, sides, and top-plate of these telephones are made of black enamelled steel.
The terminals are enclosed.
Two cranks can be supplied at an additional cost.
| Type | Generator | Number of magnets | Generator will ring the bell thro' a resistance of Ohm | Resistance of ringer Ohm | Weight Kg | Codeword |
| AC 500 | RH 3230 | 3 | 20000 | 300 | 5,4 | Alipir |
| AC 540 | RH 5502 | 5 | 25000 | 2000 | 6,2 | Aliput |
Telephone AC 540 is provided with a press button for cutting out the ringer coils, &
short circuiting the induction coil.
If specially required, we can supply type AC 540 with the connections so arranged, that
the ringer is cut out when the generator is operated, & in this case, no press button is
provided.
Type AC 1000
Extension table telephone without generator or bell
(Old Cat. No. 395)
Micro-telephone RE 2002 (Old Cat. No. 520) resting on a cradle switch, with cord
RS 7021 (No. 2252), flexible cable RS 9000 (N0. 2084) and terminal block.
This telephone is intended for use in connection with our ordinary telephones and should
be so placed that a signal received on the main telephone can be heard by the person who uses
the extension telephone. An incoming call can be answered equally well from either
instrument.
Weight: 1,36 kg.
Codeword: Alivug.
Type AD 100
Intermediate wall telephone for 2-3 earth circuit lines
Local Battery Systems
(Old Cat. No. 325)
Framework polished walnut, constructed to hold 2 cells RK 240 or RK 410 (Old Cat.
No. 596 or 590).
Transmitter RC 120 on arm RC 500.
Receiver RD110 (No.546) with cord RS 4300 (No. 2030) suspended on switch-hook.
Generator RH 4120, 4-magnet, which will ring satisfactorily through the ringer and
a line resistance of 15000 ohms.
Ringer 150 ohms resistance.
Press button which should be held down while ringing.
3-way Switch. The instrument is provided with a clip for holding papers on the
desk.
This telephone is specially intended for use with 2 earth circuit lines L1 and L2.
The switch should be normally in the right or left hand position, and a signal given by
one or other of the lines will reach the intermediate station in each case. The two lines
L1 and L2 can communicate with each other independently of the position of the switch
providing that the receiver at the intermediate station is on the switch-hook.
The intermediate station can communicate with either line, by moving the switch to the
right or to the left respectively.
A third lineL3 can be connected to the intermediate station, and it can be called and
communicated with when the switch is in the central position, and at the same time, lines
L1 and L2 can communicate with each other.
If it is necessary for the third line L3 to call the intermediate station an extension
bell RA 15 (Old Cat. No. 426) must be connected across the terminals J and L3 and should it
be desirable to connect the third line to the lines L1 and L2, a switch AF 300 (Old
Cat. No. 460) must be used. In the latter case, the extension bell RA 15 would not be
required.
If the line L3 is in communication with the either line L1 or L2, the intermediate
station can at the same time be in communication with the other line.
Height of Backboard: 720 mm.
Width of Backboard: 215 mm.
Weight: 7,7 kg.
Codeword: Almled.
Type AD 120
Intermediate wall telephone for 2-3 earth circuit lines
Local Battery Systems
Framework polished walnut, constructed to hold 2 cells, RK 240 or RK 410 (Old Cat.
No.596 or 590).
Micro-telephone RE 4050 (No. 530) with cord RS 6500 (No. 2061) suspended on
switch-hook.
Generator RH 4120, 4-magnet, which will ring satisfactorily through the ringer and
a line resistance of 15000 ohms.
Ringer 150 ohms resistance.
Press button, which should be held down while ringing.
3-way switch.
The instrument is provided with a clip for holding papers on the desk.
This telephone is specially intended for use with 2 earth circuit lines L1 and L2.
The switch should be normally in the right or left hand position, and a signal given by
one or other of the lines will reach the intermediate station in either case. The two
lines L1 and L2 can communicate with each other, independently of the position of the
switch, providing that the microtelephone at the intermediate station is on
the switch-hook.
The intermediate station can communicate with either line by moving the switch to the
right or to the left respectively.
A third line L3 can be connected to the intermediate station and it can be called and
communicated with when the switch is in the central position, and at the same time lines
L1 and L2 can communicate with each other. If it is necessary for the third line L3 to call
the intermediate station, an extension bell RA 15 (Old Cat. No. 426) must be connected across
the terminals J and L3 and should it be desirable to connect the third line to the lines L1
and L2, a switch AF 300 (Old Cat. No. 460) must be used.
In the latter case, the extension bell RA 15 would not be required.
If line L3 is in communication with either L1 or L2, the intermediate station can at
the same time be in communication with the other line.
Height of Backboard: 660 mm.
Width of Backboard: 215 mm.
Weight: 7,5 kg.
Codeword: Almlog.
Type AD 125
Intermediate wall telephone for 2-3 earth circuit lines
Local Battery Systems
Framework polished walnut constructed to hold 2 cells RK 220 or RK 400 (Old Cat.
No. 595 or 585).
Micro-telephone RE 4050 (No. 530) with cord RS 6500 (No. 2061) suspended on
switch-hook.
Generator RH 4120, 4-magnet, which will ring satisfactorily through the ringer
and a line resistance of 15000 ohms.
Ringer 150 ohms resistance.
Press button, which should be held down while ringing.
3-way switch.
The instrument is provided with a clip for papers.
This telephone is especially intended for use with 2 earth circuit extension lines
L1 and L2.
The switch should be normally in the right or left hand position, and a signal given by
one or other of the two lines L1 and L2 will reach the intermediate station in
each case.
The two lines can communicate with each other independently of the position of the switch,
providing that the micro-telephone at the intermediate station is on the switch-hook.
The intermediate station can communicate with either line by moving the switch to the
right or to the left respectively.
A third line L3 can be connected to the intermediate station, and it can be called and
communicated with when the switch is in the central position and at the same time, lines L1
and L2 can communicate with each other.
If it is necessary for the third line L3 to call the intermediate station, an extension
bell RA 15 (Old Cat. No. 426) must be connected across the terminals J and L3 and should it
be desirable
to connect the third line to the lines L1 and L2, a switch AF 300 (Old Cat. No. 460)
must be used. In the latter case, the extension bell RA 15 would not be required.
If the line L3 is in communication with either L1, or L2, the intermediate station can at
the same time communicate with the other line.
Height of Backboard: 715 mm.
Width of Backboard: 250 mm.
Weight: 8,3 kg.
Codeword: Almluk.
Type AD 200
Intermediate wall telephone for 2 earth or metallic circuits
Local Battery Systems
(Old Cat. No. 330)
Framework polished walnut, constructed to hold 2 cells RK 220 or RK 400 (Old Cat.
No. 595 or 585).
Micro-telephone RE 4050 (Old Cat. No. 530) with cord RS 6500 (No. 2061) suspended
on switch-hook.
Generator RH 5050, 5-magnet, which will ring satisfactorily through the ringer and
a line resistance of 25000 ohms.
Ringer 1000 ohms resistance.
Press button, which should be held down while ringing.
2-way switch and clip for papers.
The intermediate station can communicate with either line, depending upon the position of
the switch.
A signal given by either of the lines will ring the intermediate station, independently of
the position of the switch.
The two lines can communicate with each other, providing that the micro-telephone at the
intermediate station is on the switch-hook.
The conversation can in no case be overheard.
The intermediate station can be used with either 2 earth circuits, 2 metallic
circuits, or for one earth circuit and one metallic circuit.
Height of Backboard: 715 mm.
Width of Backboard: 250 mm.
Weight: 9,8 kg.
Codeword: Almoba.
Type AD 250
Intermediate wall telephone for 3 metallic circuits
Local Battery Systems
(Old Cat. No. 335)
Framework polished walnut, constructed to hold 2 cells RK 220 or RK 400 (Old Cat.
No. 595 or 585).
Micro-telephone RE 4050 (Old Cat. No. 530) with cord RS 6500 (No. 2061) suspended
on switch-hook.
Generator RH 5050, 5-magnet, which will ring satisfactorily through the ringer and
a line resistance of 25000 ohms.
Ringer 1000 ohms resistance.
Press button, which should be held down while ringing.
3-way switch and a clip for papers.
When the switch is in its normal position, e.g. to the left, or to the right, either of the
two lines L1 and L2 can give a signal to the intermediate station.
The lines L1 and L2 can communicate with each other independently of the position of
the switch, provided that the micro-telephone at the intermediate station is on the
switch-hook.
The intermediate station can communicate with the lines L1, L2 or L3 if the switch
is to the left, to the right or in the central position respectively. In the last case the
lines L1 and L2 can communicate with each other at the same time as the intermediate station
is in communication with the line L3.
If it is necessary for the third line L3 to also ring the intermediate station, an
extension bell RA 15 (Old Cat. No. 426) must be connected across the two terminals L3.
Should it be desired to connect the third line L3 to the lines L1 and L2, a switch
AF 340 (Old Cat. No. 465) must be used, and in this case the extension bell RA 15 would not
be required.
If line L3 is in communication with either of the lines L1 or L2, the intermediate station
can at the same time be in communication with the other of these 2 lines.
When 2 telephones are in speaking communication with one another, the conversation cannot
be overheard.
Height of Backboard: 715 mm.
Width of Backboard: 250 mm.
Weight: 9,6 kg.
Codeword: Almogo.
Type AE 200
Intermediate table telephone for 2 earth or metallic circuits
Local Battery Systems
Micro-telephone RE 1004, resting on a cradle switch, with cord RS 6010, flexible
cable RS 9635 and terminal block.
Generator RH 4501, 4-magnet, which will ring satisfactorily through the ringer and
a line resistance of 25000 ohms.
Ringer 1000 ohms resistance.
2-way switch.
The base and sides of the telephone are made of black enamelled steel, and the top
plate of ebonised pear-tree wood.
If required, and without extra cost, this telephone can be supplied with the framework
enamelled and polished to match walnut.
The intermediate station can communicate with either of the lines depending upon the
position of the switch.
A signal given by either of the lines will ring the intermediate telephone independently
of the position of the switch.
The two lines can communicate with each other providing the micro-telephone on the
intermediate station is on the hook.
The conversation can in no case be overheard.
The intermediate telephone can be used with either 2 earth circuits, 2 metallic circuits
or one earth circuit and one metallic circuit.
Weight: 5,2 kg.
Codeword: Almrek.
Type AE 250
Intermediate table telephone for 2 lines; single or metallic circuits
Local Battery Systems
Micro-telephone RE 1004 resting on a cradle switch, with cord RS 6010, flexible
cable RS 9800 (Old Cat. No. 2429).
Generator RH 4501, 4-magnet, which will ring satisfactorily through the ringer and
a line resistance of 25000 ohms.
Ringer 300 ohms resistance.
3-way switch.
Wall fitting RA 122, with framework of black enamelled steel, 1000 ohm ringer
and disc protector for 2 single or metallic circuits.
Base and sides of the table telephone black enamelled steel. Top plate ebonised pear-tree
wood.
If required and without extra cost, this instrument can be supplied enamelled to imitate
walnut.
The terminals are all enclosed.
The intermediate station can communicate with either of the two lines L1 and L2,
depending upon the position of the switch.
A signal given by one of the lines L1 and L2 will ring either of the intermediate
station bells depending upon the position of the switch; this should however under normal
conditions be in the right or left hand position; a signal coming from one of the lines will
then ring the intermediate station only and not the other extension line.
When the switch is in the central position, the two lines L1 and L2 can communicate
with each other.
The conversation can in no case be overheard.
This telephone can be used for either 2 earth circuits, 2 metallic circuits, or for one
earth circuit and one metallic circuit
Total weight: 6,1 kg.
Codeword: Almrun
Type AF 100
Extension switch for 2 earth circuit lines
Local Battery Systems
(Old Cat. No. 435)
This instrument consists of a polished walnut base, on which are mounted a 3-way lever
switch, and a ringer of 300 ohms resistance, fitted with a drop indicator, and is intended
for use with our telephones, types AB or AC.
This combination of Extension Switch and Telephone performs the same functions as an
intermediate telephone, and can communicate with either of the two lines, depending upon the
switch being in the left or right hand position.
A signal given by the lines will ring either the bell on the telephone, or that on the
extension switch, again depending upon the position of the switch.
The switch should normally be to the left or to the right hand, and a signal coming from
one of the lilies will then ring the intermediate station only and not the other extension
line.
When the switch is in the central position, the two lines can communicate directly with
each other.
When any two of the above telephones are in communication with each other, their
conversation cannot be overheard by the third.
Height of Backboard: 355 mm.
Width of Backboard: 140 mm.
Weight: 1,6 kg.
Codeword: Almsim
Type AF 200-231
 |
 |
| AF 200 | AF 210 |
 |
 |
| AF 220 | AF 230, AF231 |
Extension switches for 2 earth or metallic line circuits
Local Battery Systems
These extension switches are for use with our ordinary telephones, type AB or AC.
| Type | Old Catalogue No. | Resistance of ringer Ohm | Dimensions of Backboard | Weight kg | Code word |
| AF 200 | 440 | 1000 | 360 X 140 | 1,7 | Almsup |
| AF 210 | 450 | 1000 | 350 X 140 | 1,8 | Almsyq |
| AF 211 | - | 1000 | 350 X 140 | 1,8 | Almtal |
| AF 220 | 455 | 1000 | 200 X 190 | 2,0 | Almtem |
| AF 230 | - | 1000 | 220 X 160 | 2,2 | Almtin |
| AF 231 | - | 2000 | 220 X 160 | 2,2 | Almtop |
All the above types are 3-way switches and have drop indicators, and type AF 211 has a
restoring device which operates, when the switch passes over the central position. The types
AF 200, 210 and 211 are mounted on polished walnut base, the type AF 220 in polished walnut
case, the type AF 230 and 231 in a case of black enamelled steel.
This combination of extension switch and telephone performs the same functions as the
intermediate telephone AE 250, and can communicate with either of the two lines, L1 and L2,
depending upon the switch being either to the left or to the right.
A signal given by one of the lines L1 and L2 will ring the extension bell or the bell
on the telephone, again depending upon the position of the switch.
The switch should normally be to the left or to the right hand, and a signal coming from
one of the lines will then ring the intermediate Station only and not the other extension
line.
When the switch is in its central position, the two lines L1 and L2 can communicate
directly with each other.
When any two of the above telephones are in communication with each other, their
conversation cannot be overheard.
This extension switch can be used for 2 earth circuits, 2 metallic circuits, or an
earth circuit line, and a metallic circuit line.
Type AF 300
Extension switch for 3 earth circuit lines
Local Battery Systems
(Old Cat. No. 460)
This extension switch is for use with intermediate telephones AD 100, AD 120 or AD 125.
It is mounted on a base of polished walnut, and fitted with a 4-way lever switch,
and ringer of 150 ohms resistance, with drop indicator.
For details as to use, see pages AD 100, AD 120 or AD 125.
Height of Backboard: 365 mm.
Width of Backboard: 140 mm.
Weight: 1,6 kg.
Codeword: Almtuq.
Type AF 340
Extension switch for 3 metallic circuits
Local Battery Systems
(Old Cat. No. 465)
This extension switch, which is mounted on a base of polished walnut, is for use with
the intermediate telephone AD 250 (Old Cat. No. 335).
It is fitted with a 3-way lever switch, and 1000 ohm ringer with drop indicator.
For details as to use, see page AD 250.
Height of Backboard: 375 mm.
Width of Backboard: 140 mm.
Weight: 2,0 kg.
Codeword: Almtyr.
Type AF 500
Extension switch for 2 metallic circuits with special protection against High Tension
Currents
Local Battery Systems
This extension switch performs the same functions as types AF 200-231, but is specially
constructed for use with the wall telephone AB 5000.
The switch is operated by means of cords 2 meters long, which are connected to the
handle.
Height of Backboard: 355 mm.
Width of Backboard: 140 mm.
Weight (without cords): 1,8 kg.
Codeword: AImzar.