[Amps] Tl- 922

[Victor Rosenthal 4X6GP]

I'm guessing the problem is high plate current/negative grid current 
with no drive? That's a symptom of grid-filament short. Note that it's 
often the case that it shorts only when hot.

Try taking out one tube and see if it goes away. If not, put it back and 
take out the other.

73,
Victor, 4X6GP
Rehovot, Israel
Formerly K2VCO
CWops no. 5
http://www.qsl.net/k2vco/
.
On 15-Jul-2020 01:06, twobusyracing wrote:
> Kenwood tl-922, the amp burnt up the R7 resistor and pecked the ip amp gauge, i've replaced the R7 resistor, and had the ip amp gauge repaired, but the issue is still there!! I've since fitted the don Kessler tl-922 kit, for several improvement reasons, thinking the zener diode was the cause,but no the issue is still there. I have checked transformer taps, chocks, caps, as well as ohms tested the tubes, allthough after a little research ohm testing 3-500z tubes is pointless apparently. I have exhausted my limited knowledge on electronics, any advice in the right direction would be of great assistance. Much appreciated walter     Sent from my Samsung Galaxy Tab S2 on the Telstra Mobile Network
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