The Amp Garage

do a search here on the amp garage and you will find mr. z explains the output transformers

george alessandro uses them in his bloodhound amp which is tw inspired

I believe the higher voltage el34 amps used 5k transformers.....the k50 and k 60

yes

it was the resistors in the voltage divider.....one of them.....I replaced them both and it works.....thank you much

250 volts on the plate pin 5 the schematic is numbered wrong and I have tried 3 tested tubes

I'm getting a solid 170 volts on pin 6

there is only 7 pins

all caps have been replaced and still not working. I'm getting a 100 volts across the 150k plate resistor

it's the r600c schematic on the same page. Actually it's a picture of a schematic stuck to this amp.

I have what I believe to be a 1964 lectrolab r600c on my bench. I can't seem to get the trem to work. It's bias modulating with a 6au6 tube. What should I look for? I just started learning about trem circuits, but this one confuses me a bit. the schematic can be found at http://lectrolab.wordpress.c...

mid pot is 25k linear presence is 25k linear volume is 1 meg audio treble is 1 meg audio and I used 250k audio for bass after trying the 1 meg audio for bass.....with everything on noon and cts pots it sounded much better to me

so my old mullard are on there last leg....what are you guys using and where are you getting them. Are the 7189's from the tubestore any good?

that's funny mark, I had a 1 meg audio for the bass and then noticed your schematic that had 250k audio and changed it. Seemed more right to me with everything on noon and has been there since

trainwreck power transformer is rated at 300 ma