No offense intended, but if you are unable to identify transistor types, how did you come to the conclusion that the original one was bad? Was it blown up or burnt?
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Show posts MenuQuote from: gdeig on August 23, 2013, 06:36:21 AM
this doesn't explain why the exact same oscillation tone can be heard with no guitar
Quote from: gdeig on August 21, 2013, 11:11:23 PMThese 2 statements can't both be true, which is it?
Ok, if i short out the input or there is nothing plugged in (same thing) there is no squeal.
Quote from: EDWARDEFFECT1 on August 10, 2013, 03:52:31 PMVerify the output section by running the send from the Traynor into the return of the Polytone.
i powered up the amp and ran a chord from the Polytone send to a traynor 20 watt amps return and the volume is low.must be a preamp problem.i need to verify the output section the same way as the volume is lower than what i had previously.
Quote from: DckTech on June 17, 2013, 10:40:05 PM
Replaced the original "1122" reverb tank with a "P-MOD-4AB3C1C" = best spec I could find to equal original.