GEC BC3960 Vintage Radio

The GEC BC3960 was a popular wooden cased vintage 5 valve or tube radio manufactured in the UK by GEC with some push button tuning selectors for preset stations.


GEC and GECoPHONE Radios Includes:
GECoPHONE No 1 (BC1001 & BC1002)     GECoPHONE BC2830 TRF     GEC BC3960 superhet    

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The GEC BC3960 radio was a British radio introduced before WW2 and aimed at the growing domestic radio market for broadcast radios.

The radio incorporated push buttons for five preset radio stations - these used five preset tuning capacitors that were located inside the radio.

Front view of the GEC BC3960 five valve superhet vintage radio
Front view of the GEC BC3960 vintage radio

GEC BC3960 basics

GEC BC3960 Vintage Radio Performance Summary
 
Parameter Details
BC39600 summary Long medium and short wave 5 valve broadcast superhet radio
Date of introduction June 1938
Cost at introduction
Wave range (frequency coverage) Long, medium and short waves
Number of valves 4 valve + 1 valve power rectifier
Principle of operation Superhet radio
Intermediate frequency 465kc/s (kHz)
Tuning Tuning capacitor or 5 preset push buttons
Output capability Electro-magnetic Dynamic loudspeaker (moving-coil type with field excitation coil)
Power Mains input: 190 - 250V

The same electronics chassis was used in other radios, namely the BC3964 console radio and a similar chassis was fitted in the BC3968 radiogram.



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BC3960 circuit description

Valve / Tube Line-up for GEC BC3960 Vintage Radio
 
Valve Number Type Use within the circuit
V1 X65 Mixer and local oscillator
V2 W63 IF amplifuer
V3 DH63 detector and audio preamplifier
V4 KT63 Audio output
V5 U50 Power rectifier
View of the internal chassis of the BC3960 showing the valves, loudspeaker and other components - warning high voltages are present!
View of the internal chassis of the BC3960 showing the valves, loudspeaker and other components

Ian Poole   Written by Ian Poole .
  Experienced electronics engineer and author.



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