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A38 BC3840

A38 BC3840; GEC, General (ID = 1596754) Radio A38 BC3840; GEC, General (ID = 1596757) Radio
A38 BC3840; GEC, General (ID = 1596759) Radio
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A38 BC3840; GEC, General (ID = 1596754) Radio
GEC, General: A38 BC3840 [Radio] ID = 1596754 525x350
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For model A38 BC3840, GEC, General Electric Co.; London
 
Country:  Great Britain (UK)
Manufacturer / Brand:  GEC, General Electric Co.; London
Brand
 
Gecophone
Year: 1937 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 4: W63 W63 KT63 U50
Main principle TRF (Tuned-Radio-Frequency but use of regeneration unknown); 1 AF stage(s)
Tuned circuits 2 AM circuit(s)
Wave bands Broadcast (MW) and Long Wave.
Details
Power type and voltage Alternating Current supply (AC) / 110-240 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 6 inch = 15.2 cm
Power out
from Radiomuseum.org Model: A38 BC3840 - GEC, General Electric Co.;
Material Bakelite case
Shape Tablemodel, with any shape - general.
Dimensions (WHD) 16 x 12.3 x 28 inch / 406 x 312 x 711 mm
Notes

The position of the on/off-volume control and the wavechange control are  indicated in the tuning scale. Steel cables link the controls to a small pointer ats the bottom of the tuning scale.

The "BC3840L" version (as with most GEC) indicates Low Voltage inputs added on transformer. The non-L version doesn't have 110V ranges, only 240V ranges.

Net weight (2.2 lb = 1 kg) 24 lb 0 oz (24 lb) / 10.896 kg
Literature/Schematics (1) - - Manufacturers Literature

Model page created by Mark Stuckey. See "Data change" for further contributors.



All listed radios etc. from GEC, General Electric Co.; London
Here you find 424 models, 248 with images and 233 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



 


Forum contributions about this model
GEC, General: A38 BC3840
Threads: 1 | Posts: 3
Hits: 1204     Replies: 2
gec: A38; additional information
Mark Stuckey
25.Jan.14
  1

Since I have posted this particular radio, and based on the stations identified I feel that in fact this model was produced in 1935, not later, also as i was not to sure at first what or how to add data, the valves are in fact V4 U50 full wave rectifier, V1/V2 W63 variable-mu screen pentodes and V3 KT63 Tetrode power output valve.

Thank you to the two other members who have advised me on the date as in fact 1937, not 1935

Mark Stuckey

Michael Watterson
25.Jan.14
  2

I thought it's probably 1937/1938 and a "budget" model. Probably the real model number starts BC38?? where "??" is two more digits.

GEC seems to have started using W63 KT63 U50 in 1937 approx in BC38?? models, i.e. All-Wave super six  BC3860.

So making a wild "guess" that it's really a BC3840 I search and find it on www classicwireless co uk /gecg htm  (take out spaces and put dots).

A UK service information seller offers the actual Manufacturer's service data (copy) for about £2. There is also a BC3840L, but I don't know what the difference is. Does your wavechange have a "Droitwich Rejection" LW postion? Is there a 200kHz (1500m) Coil & capacitor trap on the aerial circuit?

Howard Craven
25.Jan.14
  3

The GEC manufacturers service manual dated 1937 names this model as the A38 BC3840 (or BC3840L with a different mains transformer). The model page is now correct apart from the year of manufacture (1937) and the height measurement, 316 ins ? 

Regards ....... Howard

 

 
GEC, General: A38 BC3840
End of forum contributions about this model

  
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