Marconi High Frequency telegraphy/telephony Transmitter Type SWB8E

Marconi High Frequency telegraphy/telephony Transmitter Type SWB8E, c. 1935, used at the Cable & Wireless Ltd Engineering Training College, at Porthcurno, Cornwall.

This transmitter, telegraph only, was transferred to Porthcurno from Gibraltar in the mid 1950s and represented a type in use at Cable & Wireless until the early 1970s.

Details

Category:
Radio Communication
Object Number:
1993-1587
type:
transmitter
credit:
Cable and Wireless plc (Porthcurno)

Parts

Steel framework to house Marconi SWB 8E transmitter

Steel framework to house Marconi SWB 8E transmitter

Steel framework to house Marconi SWB 8E transmitter with integral wooden shelving

Object Number:
1993-1587 Pt1
type:
transmitter
Four Banks of Dropper Resistors on Asbestos Framework

Four Banks of Dropper Resistors on Asbestos Framework

Four banks of dropper resistors on asbestos framework from Marconi SWB 8E Transmitter

Measurements:
overall: 140 mm x 820 mm x 290 mm, 12 kg
Object Number:
1993-1587 Pt2
type:
resistors
Bank of Three Large Capacitors

Bank of Three Large Capacitors

Bank of three large capacitors from Marconi SWB 8E Transmitter

Measurements:
overall: 160 mm x 290 mm x 180 mm, 5.5 kg
Object Number:
1993-1587 Pt3
type:
capacitors
Seven Perforated Cover Panels

Seven Perforated Cover Panels

Seven perforated cover panels from Marconi SWB 8E Transmitter

Measurements:
overall: 60 mm x 910 mm x 2550 mm, 26.5 kg
Object Number:
1993-1587 Pt4
type:
cover - closure
Perforated Rectangular Cowling with Two Ceramic Pillar Insulators

Perforated Rectangular Cowling with Two Ceramic Pillar Insulators

Perforated rectangular cowling with two ceramic pillar insulators from Marconi SWB 8E Transmitter

Measurements:
overall: 360 mm x 920 mm x 350 mm, 9.5 kg
Object Number:
1993-1587 Pt5
type:
cowling
Wall-mounting wooden cupboard containing 20 tuning coils

Wall-mounting wooden cupboard containing 20 tuning coils

Wall-mounting wooden cupboard containing 20 tuning coils for Marconi SWB 8E Transmitter

Object Number:
1993-1587 Pt6
type:
cupboard
Seven PA valves type ACT 9

Seven PA valves type ACT 9

Seven PA valves type ACT 9 for Marconi SWB 8E Transmitter

Object Number:
1993-1587 Pt7
type:
valves
Envelope containing approx. 30 copper connecting straps

Envelope containing approx. 30 copper connecting straps

Envelope containing approx. 30 copper connecting straps for Marconi SWB 8E Transmitter

Object Number:
1993-1587 Pt8
type:
straps
Envelope Containing 2 Ceramic Insulators

Envelope Containing 2 Ceramic Insulators

Envelope containing 2 ceramic insulators, 1 capacitor & miscellaneous nuts & bolts for Marconi SWB 8E Transmitter

Measurements:
overall: 100 mm x 220 mm x 90 mm, 1 kg
Object Number:
1993-1587 Pt9
type:
insulators
Spare drawings

Spare drawings

Spare drawings, calibration charts and 2 technical handbooks for Marconi SWB 8E Transmitter

Object Number:
1993-1587 Pt10
type:
drawings
Image ©
The Board of Trustees of the Science Museum
Main output stage for Marconi SWB 8E Transmitter with one ACT 9 valve and small aerial switch

Main output stage for Marconi SWB 8E Transmitter with one ACT 9 valve and small aerial switch

Main output stage for Marconi SWB 8E Transmitter with one ACT 9 valve and small aerial switch, all in a transportation crate

Object Number:
1993-1587 Pt11
type:
transmitter
Transformer / Rectifier Unit from Marconi SWB 8E Transmitter

Transformer / Rectifier Unit from Marconi SWB 8E Transmitter

Transformer /rectifier unit from Marconi SWB 8E Transmitter

Measurements:
overall: 1000 mm x 940 mm x 400 mm,
Object Number:
1993-1587 Pt12
type:
transformer
Box of valves and indicator lights

Box of valves and indicator lights

Box of valves and indicator lights for Marconi SWB 8E transmitter

Object Number:
1993-1587 Pt13
type:
valve
Four large rectangular tuning coils

Four large rectangular tuning coils

Four large rectangular tuning coils for Marconi SWB 8E Transmitter

Object Number:
1993-1587 Pt14
type:
tuning coils
Three small rectangular tuning coils

Three small rectangular tuning coils

Three small rectangular tuning coils for Marconi SWB 8E Transmitter

Object Number:
1993-1587 Pt15
type:
tuning coils
Relay Unit from Marconi SWB 8E Transmitter

Relay Unit from Marconi SWB 8E Transmitter

Relay unit from Marconi SWB 8E Transmitter

Measurements:
overall: 240 mm x 380 mm x 280 mm, 7.5 kg
Object Number:
1993-1587 Pt16
type:
relay unit
Five Meter / Control Panels from Marconi SWB 8E Transmitter

Five Meter / Control Panels from Marconi SWB 8E Transmitter

Five meter / control panels from Marconi SWB 8E Transmitter

Measurements:
overall: 170 mm x 820 mm x 1220 mm, 20.5 kg
Object Number:
1993-1587 Pt17
type:
control panels
Support Bracket for Valve Top-Cap Connectors

Support Bracket for Valve Top-Cap Connectors

Support bracket for valve top-cap connectors from Marconi SWB 8E Transmitter

Measurements:
overall: 200 mm x 790 mm x 520 mm, 4.5 kg
Object Number:
1993-1587 Pt18
type:
bracket