BTMC 2731 (Kellogg)

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Page 57:
French-English online translator and dictionary

Bel] Telephone Mfg Co. | |
"5 "" To 10 line | |
r - © 4 © A—: h
—© $ 6 © è ® ° n x
| or 4 main items to to A
(© : O— È ;
That's a call dial. h ;
° Less 1st) a | To : H
0 case of black Bakelite assembled from os
/ -- hinges to base plate on si
; REED which are mounted self's coil, . ONE
| TE _ . Fi
the vibratory Bell, the stamps and l
. terminal. Dial with me-Do
one switching mechanism. Mobile Stop 1
to,, EE
| so %e for the operation of the bell ;
B "> 2 " Di '
call. The equipment parts of .
SD . Seven
To | these positions have been given an appropriate finish |
the climate to which they are destined. |
| _ _ /
2731-A |
108 0 0 0 wall Post No 2737-A |
| | Te |
= 1 — line posts - se-SR posts
condaires unable to communicate
only with one main post 2731
Circuit diagram for items 2731 and 2737 or 2131.
2733-a |
PL LL this position is similar to . Wall post no 9734
To Item No 2731-a, except
nude CT: dial with mecha-
D switching facility, which LU OL R8 TB TR
Re E ÿ replaced by a fake disk © © + - © vos ©
NO 9047-C, and stop mo- |
The bile which is replaced by a
> The push button mounted on the
case. |
/ / —. Wall post No. 2734-A :
/ ; Base of varnished wood, lid
/ metallic enamelled black with 2 Lg fee
claws for its attachment to
/ Table top 2783-4 base which also serves as support
to the self coil, to the snorer, to the terminals and to the Switch hook.
Wall post No 2734-B | layout of post 2733
Is similar to position 0 2734-a, but lacks the snorer. This position is used with a
independent ringtone not delivered with the post. |
Moderate climate stations-2700 series. - Posts for tropical climates-series 2800.
The equipment and accessories of these items are listed in the table below.
Colour of the posts
All Bakelite stations can also be supplied in one of the following colours, to be specified at
command :
1-Cream 4-Walnut 7-Brown 10-Brown 13-light green
2 — white [| 5 - light mahogany 8 — red 11 — blue 14 — green L
3-Oak 6 - dark mahogany 9-dark red 12-Dark Blue 15-dark green
B — TP — s
RE

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Page 58:
Bel Telephone Mfg Co,
Street equipment
Lodge | To 7 ayar xirarives Weight
Coil self Fbratoire Stamp | we are | disk | Ron fires Read Prof. - High. FE
| |
- Stations for moderate climates
2731-A | 2034-C 2001-B sp. ! 2245-A | PS-26462 7 — — 156 177.16 | |
2731-A | 2034-C 2001-B sp. |: 2245-A PS-26462 — — 15: 42: 214 |
2133-A | 2034-C | 2091-B sp. 2245-A — 2047-C— 156 - 176 146 1,200
2734-a / 2034-C -- — — — 2006- BT2 Social Sciences
2734-B | 2034-C — | — :; — CC — 12% 52% 92
Tropical climate stations
2831-A | 2034-C sp. | 2001-B sp. | 2245-G | PS-26462 — | — | 1400
2837-A 2034-C sp. | 2001-B sp. 2245-G | PS-26462) — — J
2833-A | 2034-C sp. | 2001-B sp. |! 2245-G — 2047-C — 1,200
2834-A | 2034-C sp. — — — | 2006-BTI
2834-B | 2034-C sp. — / - - =
Additional accessories
CU Microtelephone Capsule ne dephone ana Rene
Moderate climate stations
2731-A 2290-A: 2038-B AD-32311 / PS-26288 AD-32275
2737-A 2290-A 2038-B AD-39311 —_ —
2133-A | 2290-A 2038-B AD-32311 PS-26461 AD-32302 |
2734-A PS-26544 2038-B AD-32311 — —
21734-B PS-26544 2038-B AD-32311 |; — | —
Tropical climate stations
2831-A | 2290-A 2038-B AD-32312 | PS-26288 ! AD-32275
2837 A-2290 A-2038-B AD-32312 — —
2833-A 2290-A R 2038-B _. AD-39312 PS-26161 AD-32302
2834-A PS-26544 2038-B AD-39312 — _
2834-B PS-26544 | 2038-B |. AD-39312 — —
(4) " power supply
/ 4 (5 to ( 3 to conversation Circuit.
# = D 0< to a common battery before a voltage of + volts.
ES-1 Circuit call or a ringtone. |
_ F ARE ea ; TT ------ .
/ Que dj - - - / a common battery of 4 volts for a line having a-
Ÿ ' at 1 OZ. _ at a rate of 30 ohms or less. For any line whose resistance
4 in 8 \ dd is greater than 30 ohms, 1L must add a 1.5 volt element
To DR per 15 ohms or fraction of 13 ohms.
/ (TO pipeline
Its special cable with flared conductors; in order to avoid any-
_ Ference between simultaneous conversations, all screens are -
Dial call positions No. 2731 and 2737
connected to the TB terminal.
B-TP, —

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And at last, page 58:Bef] Telephone MF Co.
Uäb'e with 14 conductors for the connection of the main stations to 10 lines.
7-conductor Cable for connection of substations 1 line to main substations at
juchgnes.
1 line posts |
Two identical stations are connected by a line. To transmit a call, just pick up the
microtelephone and push the ringtone. The caller called, picking up his mic.-
phone cuts the Ring circuit and closes the conversation circuit. |
Item 2732-A
Nile |" Post on the wall. Base of varnished wood on which are mounted
ë Oo L LO .
/ a set of springs with hook switch, a drone
| No. 2006-BT, and 6 terminals. Metal lid enamelled black
/ / with claws for attachment to the base.
The item includes the following additional accessories:
OT To . . x , ; ,
| - which must be specified at the command :
B ,
= o 1 microtelephone PS-26544, 1 microphone capsule
2038.
Fa
1 cord AD-32311 or AD-32276.
The \ T æ< , 2
2732-a this position is similar to position 0 2734 but lacks
self-inductor coil.
Item 2732-B
Is similar to position No. 2732-a, but does not have a bumble bee. This position is used jointly
with an additional Bell running under 3 volts through a resistance of 30 ohms. The sound-
is complete is not provided with the position.
Power
/ The ring and conversation circuits are powered by a single 3 volt battery, the resistance
the line to be less than 15 ohms. For any additional resistance of 8 ohms, it is necessary to add
a 1.5 volt element.
B-TP, —