04-13-2012, 09:47 AM
Hello, Larry: first check all your resistor values, incl the large wirewound.
Do you still have the incr in distortion as you incr volume? Could be a cathode bias issue in output circuit if so, BUT......
Re stuff of bakelite blocks is not that tough. You should replace these caps too as they too are 70+ years old. The mica caps are usually ok.
Any bad cap between B+ and ground can cause excessive current draw, but it could be something else.
Might be a good idea to re-check your previous work, just to be sure. Check to see if a lead or solder has been moved to the point that it is making ctc with ground.
BTW unclear if you did replace the can with the four caps.
Do you still have the incr in distortion as you incr volume? Could be a cathode bias issue in output circuit if so, BUT......
Re stuff of bakelite blocks is not that tough. You should replace these caps too as they too are 70+ years old. The mica caps are usually ok.
Any bad cap between B+ and ground can cause excessive current draw, but it could be something else.
Might be a good idea to re-check your previous work, just to be sure. Check to see if a lead or solder has been moved to the point that it is making ctc with ground.
BTW unclear if you did replace the can with the four caps.
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