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Vintage Television and Video Vintage television and video equipment, programmes, VCRs etc. |
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19th Apr 2017, 6:56 pm | #41 |
Octode
Join Date: Jan 2009
Location: Falmouth, Cornwall, UK.
Posts: 1,991
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Re: Ekco TCG316 Tele-Gram
What happens if you isolate / remove the wire from the tube socket, does the screen revert to normal level.
The only resistors that should be on the base are R134 220k and R80 100k, something fishy going on.
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Stephen _________"It`s only an old telly" ___ Last edited by Freya; 19th Apr 2017 at 7:18 pm. |
19th Apr 2017, 7:35 pm | #42 |
Pentode
Join Date: Feb 2008
Location: Belfast, Northern Ireland, UK.
Posts: 132
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Re: Ekco TCG316 Tele-Gram
Hi there
After removal of the Wire the was no difference. G1 short? I tapped the neck with the rubber end of the of a pare of pliers and the screen flashes from light to dark. I thought the resistor was out of place! It's a rather new looking one not the usual old style. I'll clip it out me thinks. S |
19th Apr 2017, 7:40 pm | #43 |
Pentode
Join Date: Feb 2008
Location: Belfast, Northern Ireland, UK.
Posts: 132
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Re: Ekco TCG316 Tele-Gram
Oops Correction that is my pliers affecting the focus magnets
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19th Apr 2017, 7:41 pm | #44 |
Octode
Join Date: Jan 2009
Location: Falmouth, Cornwall, UK.
Posts: 1,991
|
Re: Ekco TCG316 Tele-Gram
I had my suspicions about a short, could be grid to cathode short. not sure if there is a way around this problem.
you could try powering the heater from an external source and then test between the pins for shorts.
__________________
Stephen _________"It`s only an old telly" ___ |
19th Apr 2017, 8:04 pm | #45 |
Pentode
Join Date: Feb 2008
Location: Belfast, Northern Ireland, UK.
Posts: 132
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Re: Ekco TCG316 Tele-Gram
Thanks for your help with this Stephen. I'll try as you suggested but can't tonight as I don't have a external power supply at home I'll have to bring one home.
Well I was hoping for a much more successful repair. I've basically got a very good sounding record player but for the time being a non functioning TV circuit. I really must find the right Base for my B&K 467 as I could give the tube a thorough test and possibly remove the posable short. I may leave this set for a bit as I still haven't resolved the Tunner problem and I'm not to sure if I can sort the crt yet. S |