11-28-2011, 09:32 PM
If I did this correctly....I measured voltage at pin #5 of the 6l6's and got a voltage reading of -.115 on both tubes.
I am now wondering if I did the change back to the 6r7 from the 6sr7 correctly. If someone has a copy of that tube sub and what needs to be changed in the circuitry would you please scan and send to me? bmarcis@netzero.net.
If I have no grid voltage(pretty much 0 voltage) what would be some of the obvious causes? I've been thru all resistors except those on the sub chassis.
Any suggestions, instructions are welcome or if someone lives near Charlotte, or Asheville, N.C. and is willing to spend an afternoon to work with me, I'd love to learn more about what I'm working on. I am willing to pay for your time to teach and or fix.
Bob
I am now wondering if I did the change back to the 6r7 from the 6sr7 correctly. If someone has a copy of that tube sub and what needs to be changed in the circuitry would you please scan and send to me? bmarcis@netzero.net.
If I have no grid voltage(pretty much 0 voltage) what would be some of the obvious causes? I've been thru all resistors except those on the sub chassis.
Any suggestions, instructions are welcome or if someone lives near Charlotte, or Asheville, N.C. and is willing to spend an afternoon to work with me, I'd love to learn more about what I'm working on. I am willing to pay for your time to teach and or fix.
Bob
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