Tube Amp Archive

That's the 470 1w (.47k?)? I can check it's value while still on the board, right? Not a fan of poking around with 2 metal sticks :lol: So the value of that resistor could have possibly floated upwards? Thanks guys Poke your prods while the amp is powered down & unplugged & you can even discharge t...

That's the 470 1w (.47k?)? I can check it's value while still on the board, right?
Not a fan of poking around with 2 metal sticks

So the value of that resistor could have possibly floated upwards?

Thanks guys

Did replace the bias filter cap, and up graded to 100/100 (I believe that was the value). If it was the wrong way I would have had major problems, right? I have gigged this amp numerous times with no problems.

Where would that resistor be if my case was similar to the Princeton you just worked on?

That's what I'm thinking.
Also I wondering too if my meter is on the fritz too.

It's not a balance.
The shunt resistor is the one going across the pot, right?
It was around 50K with my old tubes and I tried to 100k resistors with these new tubes and the bias was still high. I do bias by cathode resistor.

Greetings all, new to the board and pretty much a novice in tube amp work and greetings to Structo from the Reranch. I've run into something that is confusing me. I have a 68' Bandmaster which I've had about a year. I have recapped it and got some old Sylvania 6L6GC for it and had it biased in the l...