BT Connected Earth Collection

BT Connected Earth Collection (collection of objects and archives) Telephone exchange relay
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Science Museum Group Collection
© The Board of Trustees of the Science Museum

Telephone exchange relay Photographed on a white background.
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Collection of objects and archives donated by BT Connected Earth.

Details

Category:
Telecommunications
Object Number:
Y2003.22
Materials:
wood, plastic, metal and leather
Measurements:
Overall: 2150 mm x 1190 mm x 1765 mm,
type:
collection of objects and archives
credit:
Gift of British Telecommunications plc

Parts

Telephone 706 CB

Telephone 706 CB

Telephone 706 CB, made by the General Post Office, Cwmcarn, 1970.

On the back of the phone label says: 706 CB, GPO FDi, Batch sampled FWR 70/2.

Measurements:
Overall: 130 mm x 220 mm x 260 mm,
Object Number:
Y2003.22.163 dup 1
type:
table telephone
Section of Distribution Frame

Section of Distribution Frame

Section of main distribution frame used with CB10 exchange, made by Peel Conner of Salford in 1922.

Measurements:
overall: 2800 mm x 910 mm x 60 mm, 57 kg
Materials:
metal (unknown)
Object Number:
Y2003.22.9
type:
telephone exchange
Telephone Exchange Ringer Control Panel

Telephone Exchange Ringer Control Panel

Telephone exchange ringer control panel made by the Power Equipment Co. Ltd, London, 1928.

Measurements:
overall: 2000 mm x 650 mm x 460 mm,
Object Number:
Y2003.22.10
type:
manual telephone exchange ringer
Telephone Exchange Ringing Machine

Telephone Exchange Ringing Machine

Telephone exchange ringing machine R2, 50v DC powered, 75v AC output.

Made by Walter Jones & Co. (Engineers) Ltd, Sydenham, 1939

Measurements:
overall: 380 mm x 370 mm x 680 mm,
Materials:
iron and metal (unknown)
Object Number:
Y2003.22.12
type:
manual telephone exchange ringer
Telephone Exchange Ringing Machine

Telephone Exchange Ringing Machine

Telephone exchange ringing machine R2, 230v AC mains driven; 75v AC output.

Made by Walter Jones & Co. (Engineers) Ltd, Sydenham, 1939.

Measurements:
overall: 400 mm x 440 mm x 1130 mm,
Materials:
iron and metal (unknown)
Object Number:
Y2003.22.13
type:
manual telephone exchange ringer
Crate of parts for Telephone Exchange

Crate of parts for Telephone Exchange

Crate of parts for telephone exchange ringer control panel, 1928

Measurements:
overall: 300 mm x 400 mm x 500 mm,
Object Number:
Y2003.22.14
type:
manual telephone exchange ringer
Fuse box for manual exchange

Fuse box for manual exchange

Fuse box for manual exchange, c. 1930.

Measurements:
Overall: 530 mm x 130 mm x 410 mm,
Object Number:
Y2003.22.18
type:
telephone exchange fuse box
Clock pulse sub unit for telephone master clock

Clock pulse sub unit for telephone master clock

Clock pulse sub unit for telephone exchange master clock, 1981

Measurements:
Overall: 120 mm x 250 mm x 235 mm, 3.02 kg
Object Number:
Y2003.22.21
type:
manual telephone exchange pulsing clock
Companion clock for telephone exchange primary clock

Companion clock for telephone exchange primary clock

Companion clock for telephone exchange, primary clock by the Chloride Gent Co.

Measurements:
Overall: 70 mm, 198 mm, 1.16 kg
Object Number:
Y2003.22.23
type:
manual telephone exchange time clock
Victorian underground telephone cable marker

Victorian underground telephone cable marker

Victorian underground telephone cable marker, made in around 1870.

Measurements:
overall: 800 mm x 260 mm x 380 mm, 30 kg
Materials:
cast iron
Object Number:
Y2003.22.24
type:
telephone cable marker
Edwardian underground telephone cable marker

Edwardian underground telephone cable marker

Edwardian cast-iron underground telephone cable marker.

Measurements:
overall: 780 mm x 170 mm x 380 mm, 22 kg
Materials:
cast iron
Object Number:
Y2003.22.25
type:
telephone cable marker
Underground telephone cable marker

Underground telephone cable marker

Cast-iron underground telephone cable marker from the reign of King George VI (1936-1952).

Measurements:
overall: 800 mm x 180 mm x 380 mm, 26 kg
Materials:
cast iron
Object Number:
Y2003.22.26
type:
telephone cable marker
Telephone pole finial

Telephone pole finial

Aluminium finial for telephone pole, made in around 1960.

Measurements:
overall: 570 mm x 235 mm x 235 mm, 3.6 kg
Materials:
aluminium (metal)
Object Number:
Y2003.22.28
type:
telephone pole finial
Paper-tape telegraph reader No 161

Paper-tape telegraph reader No 161

Paper-tape telegraph reader No 161, made by Creed & Co. Ltd, London. c.1930.

Measurements:
Overall: 210 mm x 280 mm x 380 mm, 14 kg
Materials:
metal (unknown)
Object Number:
Y2003.22.31
type:
telegraph receiver
BT portable computer

BT portable computer

BT portable computer, with VT52 terminal emulator, associated with TXB4 electronic exchanges, made by Microscribe Ltd, Cwmbran, 1983. User manual inside the box.

Measurements:
Overall: 45 mm x 185 mm x 195 mm,
Object Number:
Y2003.22.35
type:
portable microcomputer
'Royal' typewriter, c.1930

'Royal' typewriter, c.1930

'Royal' typewriter, c.1930

Measurements:
Overall: 320 mm x 600 mm x 390 mm,
Object Number:
Y2003.22.39
type:
typewriter
Coil of green copper wire

Coil of green copper wire

Coil of green copper wire, c.1960

Measurements:
Overall: 360 mm,
Object Number:
Y2003.22.40
type:
telephone cable
Lead underground telephone cable section and joint

Lead underground telephone cable section and joint

Lead underground telephone cable section and joint, c.1950

Measurements:
overall: 100 mm x 370 mm x 1260 mm, 10 kg
Object Number:
Y2003.22.41
type:
telephone cable
Lead underground telephone cable joint with cable ends

Lead underground telephone cable joint with cable ends

Lead underground telephone cable joint with cable ends, c.1950

Measurements:
Overall: 50 mm x 180 mm x 720 mm,
Object Number:
Y2003.22.42
type:
telephone cable
Lead underground telephone cable joint

Lead underground telephone cable joint

Lead underground telephone cable joint, c.1950

Measurements:
Overall: 60 mm x 60 mm x 760 mm,
Object Number:
Y2003.22.43
type:
telephone cable
Telephone cables and wire

Telephone cables and wire

Box of miscellaneous telephone cable and wire.

Object Number:
Y2003.22.44
type:
telephone cable
GPO armoured payphone, c.1980.

GPO armoured payphone, c.1980.

GPO armoured payphone, c.1980.

Measurements:
Overall: 640 mm x 280 mm x 220 mm,
Object Number:
Y2003.22.48
type:
telephone payphone
Red kiosk payphone.

Red kiosk payphone.

Red kiosk payphone.

Measurements:
Overall: 540 mm x 230 mm x 230 mm,
Object Number:
Y2003.22.49
type:
payphone
Telephone cable test unit made by H. W. Sullivan Ltd

Telephone cable test unit made by H. W. Sullivan Ltd

Telephone cable test unit made by H. W. Sullivan Ltd, c.1950

Measurements:
Overall: 520 mm x 200 mm x 500 mm,
Object Number:
Y2003.22.55
type:
telephone lineman's equipment
Teletetra fire extinguisher with box

Teletetra fire extinguisher with box

Teletetra fire extinguisher made by Samuel Jones and Co., London, 1954. With box.

Measurements:
overall: 150 mm x 130 mm x 80 mm,
Materials:
metal (unknown)
Object Number:
Y2003.22.58
type:
fire extinguisher
Telephone switch

Telephone switch

Small, metal, black box. ‘4’ embossed on metal. Fittings attached inside.

Wokshop telephone switch.

Measurements:
Overall: 150 mm x 220 mm x 260 mm, 6 kg
Materials:
metal (unknown)
Object Number:
Y2003.22.60
type:
telephone switch
Pole top plug made by the National Telephone Co. Ltd

Pole top plug made by the National Telephone Co. Ltd

Pole top plug made by the National Telephone Co. Ltd, c.1900

Measurements:
Overall: 660 mm x 70 mm x 130 mm,
Object Number:
Y2003.22.61
type:
telephone pole head
22 volt ringing generator

22 volt ringing generator

22 volt ringing generator made by the Lancashire Dynamo & Motor Co. Ltd in 1896.

Measurements:
overall: 350 mm x 420 mm x 850 mm,
Materials:
metal (unknown)
Object Number:
Y2003.22.64
type:
generator
General Post Office visual index file

General Post Office visual index file

GPO visual index file with dialling codes, dating from around 1920.

Measurements:
Overall: 80 mm x 375 mm x 115 mm, 1.15 kg
Object Number:
Y2003.22.65
type:
telephone visual index file
Resistance test box made by Gambrell Brothers and Co. Ltd

Resistance test box made by Gambrell Brothers and Co. Ltd

Resistance test box made by Gambrell Brothers and Co. Ltd, London, c.1950

Measurements:
Overall: 125 mm x 125 mm x 215 mm, 1.84 kg
Object Number:
Y2003.22.73
type:
telephone tester, fault locator
Telephone Pole Top Section

Telephone Pole Top Section

Telephone pole top section, c.1955

Measurements:
overall: 826 mm x 510 mm x 525 mm,
Object Number:
Y2003.22.75
type:
telephone pole top
Power switchboard circuit breaker

Power switchboard circuit breaker

Power switchboard circuit breaker, made by the the Record Electrical Co. Ltd, Broadheath, c.1950.

Measurements:
Overall: 330 mm x 310 mm x 130 mm,
Object Number:
Y2003.22.78
type:
manual telephone exchange switching equipment
Precision test unit by H. Tinsley & Co.

Precision test unit by H. Tinsley & Co.

Precision test unit by H. Tinsley & Co., London, c.1920

Measurements:
Overall: 260 mm x 930 mm x 2000 mm,
Object Number:
Y2003.22.85
type:
telephone tester, measuring set
General Post Office K8 Mk II public telephone kiosk

General Post Office K8 Mk II public telephone kiosk

General Post Office K8 Mk II public telephone kiosk, made in around 1980.

Measurements:
overall: 2440 mm x 930 mm x 930 mm, 600 kg
Materials:
metal (unknown)
Object Number:
Y2003.22.86
type:
telephone kiosk
Picture receiver type D-356-B

Picture receiver type D-356-B

Picture receiver type D-356-B, made by Muirhead-Jarvis, c.1950.

Measurements:
overall: 1280 mm x 540 mm x 920 mm,
Materials:
metal (unknown)
Object Number:
Y2003.22.91
type:
picture receiver
Microwave dish used at the Kirk O' Shotts television signal repeater station

Microwave dish used at the Kirk O' Shotts television signal repeater station

Microwave dish used at the Kirk O' Shotts television signal repeater station, Scotland.

Measurements:
overall: 2160 mm x 690 mm x 2430 mm, 111 kg
Materials:
metal (unknown)
Object Number:
Y2003.22.92
type:
microwave dish
Wall-mounted telephone

Wall-mounted telephone

Wall-mounted telephone, made by the British L. M. Ericsson Manufacturing Co. Ltd, Beeston, Nottinghamshire, c. 1900.

Measurements:
720 mm x 280 mm x 240 mm,
Object Number:
Y2003.22.93
type:
wall telephone
Dummy telephone type 722F

Dummy telephone type 722F

Dummy telephone type 722F, made by the General Post Office, Cwmcarn, 1972.

Measurements:
Overall: 110 mm x 190 mm x 110 mm,
Materials:
plastic (unidentified)
Object Number:
Y2003.22.99
type:
table telephone
Viscount 9501R Telephone

Viscount 9501R Telephone

A Viscount push-button 9501R, manufactured by Standard Telephones & Cables Limited, and used by the Liverpool International Garden Festival in 1984, whcih was held between 2 May and 14 October.

Measurements:
Overall: 78 mm x 142 mm x 225 mm,
Materials:
plastic (unidentified) and metal (unknown)
Object Number:
Y2003.22.102
type:
telephone
Retro Model 8005 Candlestick Telephone

Retro Model 8005 Candlestick Telephone

Retro Model 8005 candlestick telephone , made by A. P. Besson Ltd, Hove, 1984, from components supplied by the American Telecommunications Corporation.

Measurements:
overall: 300 mm x 195 mm x 165 mm,
Materials:
plastic (unidentified) and metal (unknown)
Object Number:
Y2003.22.103
type:
telephone
Type 121 wall telephone, 1912

Type 121 wall telephone, 1912

Type 121 wall telephone, made by the Automatic Electric Company, Chicago, United States, 1912.


This type of telephone was used with Britain's first automatic telephone exchange, installed at Epsom in 1912. It was made by the Automatic Electric Company, of Chicago, USA. Users could choose between a wall telephone, like this one, or a candlestick design.

Measurements:
Overall: 220 mm x 145 mm x 225 mm, 2.7 kg
Materials:
wood (unidentified) , metal (unknown) , plastic (unidentified) and textile
Object Number:
Y2003.22.109
type:
telephone
Model SR1002A Contempra Telephone

Model SR1002A Contempra Telephone

Model SR1002A Contempra (Brown) table telephone, made by GEC-AEI Telecommunications, Newton Aycliffe, County Durham, and issued by Post Office Telecommunications in 1979.

Measurements:
overall: 90 mm x 140 mm x 233 mm, 1.45 kg
Materials:
plastic (unidentified) and metal (unknown)
Object Number:
Y2003.22.111
type:
table telephone
Bakelite wall telephone

Bakelite wall telephone

Bakelite magneto granular wall telephone

Object Number:
Y2003.22.112
type:
wall telephone
Bridge Megger resistence tester made by Evershed and Vignoles

Bridge Megger resistence tester made by Evershed and Vignoles

Bridge Megger resistence tester made by Evershed and Vignoles, Chiswick, c.1950, with plastic tube.

Measurements:
Overall: 170 mm x 200 mm x 300 mm,
Object Number:
Y2003.22.148
type:
telephone tester, megger
Dial impulse and speed tester No. 43 made by the Automatic Telephone & Electric Company Ltd

Dial impulse and speed tester No. 43 made by the Automatic Telephone & Electric Company Ltd

Dial impulse and speed tester No. 43 made by the Automatic Telephone & Electric Company Ltd, c.1958

Measurements:
Overall: 200 mm x 85 mm x 100 mm, .88 kg
Object Number:
Y2003.22.149
type:
telephone overhead line tester
Bellset No. 20.

Bellset No. 20.

Bellset No. 20 and original box.

Measurements:
Overall: 240 mm x 160 mm x 190 mm,
Object Number:
Y2003.22.154
type:
telephone bell
Black candlestick telephone No. 2 with transmitter no. 1

Black candlestick telephone No. 2 with transmitter no. 1

Black candlestick telephone No. 2 with transmitter no. 1, 1920.

Measurements:
overall: 300 mm x 150 mm x 180 mm, 2.35 kg
Materials:
metal (unknown) and wood (unidentified)
Object Number:
Y2003.22.155
type:
table telephone
Carbon pencil microphone transmitter

Carbon pencil microphone transmitter

Carbon pencil microphone transmitter, as used in Gower-Bell telephones.

Measurements:
Overall: 10 mm x 50 mm x 110 mm,
Object Number:
Y2003.22.157
type:
telephone transmitter
Filter unit WB 400A for the UK early warning system from voice telephone signals

Filter unit WB 400A for the UK early warning system from voice telephone signals

Filter unit WB 400A for the UK early warning system from voice telephone signals, c.1964

Measurements:
110 mm x 30 mm x 50 mm,
Object Number:
Y2003.22.159
type:
telephone exchange accessory
Bellset no. 26 made by the General Post Office

Bellset no. 26 made by the General Post Office

Bellset no. 26 made by the General Post Office, Cwmcarn, 1960

Measurements:
Overall: 205 mm x 50 mm x 165 mm,
Object Number:
Y2003.22.160
type:
telephone bell
Telephone fuse heat coil and tester no. 1

Telephone fuse heat coil and tester no. 1

Telephone fuse heat coil and tester no. 1, c.1950

Measurements:
Overall: 115 mm x 70 mm x 65 mm,
Object Number:
Y2003.22.161
type:
telephone testing coil
Telephone fuse box 1 2/2

Telephone fuse box 1 2/2

Telephone fuse box 1 2/2, 1887.

Measurements:
Overall: 120 mm x 55 mm x 75 mm,
Object Number:
Y2003.22.162
type:
telephone fuse box