Thank you all for the helpful advice. The resistor mentioned did test bad, so I will replace it. Just waiting on delivery.
As it is a PP design, I'm scratching my head why there's no output signal when only one final tube may see no grid signal.
Best regards!
Best regards!
That tube grid was gone when the resistor burned , now is in the other socket ... good theory ? 😀
Given that #10 lug indeed doesn't match with a hole in the socket, this may be true if the previous capacitor was leaky enough to allow significant grid current and destroy either the resistor and the tube 😊 .
Best regards!
Best regards!
The bad resistor has been replaced and all solder fillets have been redone to ensure there are no bad joints.
When I bench tested the amp this time around, the resistor on the bottom of the cap can blew up. I have a replacement on the way, but does anyone have any thoughts on what may have caused this? Wondering if it was likely going bad (it was 65 yrs old) or if there is something else I should be looking into.
When I bench tested the amp this time around, the resistor on the bottom of the cap can blew up. I have a replacement on the way, but does anyone have any thoughts on what may have caused this? Wondering if it was likely going bad (it was 65 yrs old) or if there is something else I should be looking into.
Don't just replace the resistor, there was another reason that it failed the way it did.
Unless one end was shorted to ground, etc.
Unless one end was shorted to ground, etc.