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Vintage Radio (domestic) Domestic vintage radio (wireless) receivers only. |
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6th May 2021, 11:00 pm | #21 |
Heptode
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Re: Gec Radio
No I haven't checked its values I just noticed it got very hot
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6th May 2021, 11:13 pm | #22 |
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Re: Gec Radio
Ok if its got hot can you be sure of the colours?
That could be red violet brown or 270 ohms. Is it the cathode resistor of the output valve ? The output valve might be drawing too much current due to a leaky coupling capacitor. What value does the service sheet say it should be? Cheers Mike T
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7th May 2021, 7:31 am | #23 |
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Re: Gec Radio
A model number for the radio would help.
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7th May 2021, 8:10 am | #24 |
Dekatron
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Re: Gec Radio
I will go for 270 Ohm and there is possibly a service sheet top right of this page, instant download if you have not got one, for what ever the model is.
There will be a few waxy caps that need replacing , so a service sheet would help.
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7th May 2021, 12:04 pm | #25 |
Dekatron
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Re: GEC Radio
GEC BC402....270 Ohms?
Lawrence. |
7th May 2021, 4:00 pm | #26 |
Heptode
Join Date: Jun 2018
Location: Carmarthenshire, Wales, UK.
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Re: GEC Radio
Yes it is a GEC402 RESISTOR IF THE COUPLING CAPACITOR IS MAKING THE RESISTOR HOT WHICH IS THE COUPLING CAPACITOR AS I AM ANOVICE AT THIS. AND WHAT TYPE OF CAPACITOR WOULD I NEED IN VALU AND TYPE PLEASE. SORRY ABOUT THIS BUT I'D RATHER GET IT CORRECT THANK YOU ALL FOR ANY HELP. FT
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7th May 2021, 4:16 pm | #27 |
Dekatron
Join Date: Apr 2011
Location: Cornwall, UK.
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Re: GEC Radio
C48 in the schematic I'm looking at (radiomuseum) Use one of these or similar:
https://www.cricklewoodelectronics.com/CFH47N.html Lawrence. Last edited by ms660; 7th May 2021 at 4:19 pm. Reason: extra info |
7th May 2021, 5:26 pm | #28 |
Octode
Join Date: Dec 2018
Location: Llandeilo, West Wales, UK.
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Re: GEC Radio
That is C54 on the Trader Sheet 1489.
Same thing 0.047uF 400 volts. Might be a good idea to measure the actual resistance of the 270Ω resistor (with the set off and disconnected) and then then actual voltage across it?
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7th May 2021, 5:41 pm | #29 |
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Re: GEC BC402 receiver.
Threads merged.
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