On Sun, 17 Apr 2011 15:13:23 -0400 (EDT), kc9...@aol.com wrote: >Very good explanation...I understoof about 30% of it...but then I am a >tech., not an engineer. Hi, Hi.
>What made this tough is that Q7 was kind of working...so I was >checking, replacing everything BUT Q7. My experience as a tech in situations like this has taught me to suspect capacitors first, transistors next. I've seen transistors fail in some strange ways over the years. :) I've recently learned that disc ceramic caps are not ideal for audio coupling. You guys have got me thinking about distortion and such. I'm thinking about putting the TR-7 on the bench and trying out that nifty surplus distortion analyzer that's languising out in the garage. 73 -Jim -- Ham Radio NU0C Lincoln, Nebraska, U.S.S.A. TR7/RV7/R7A/L7, TR6/RV6, T4XC/R4C/L4B, NCL2000, SB104A, R390A, GT550A/RV550A, HyGain 3750, IBM PS/2 - all vintage, all the time! "Give a man a URL, and he will learn for an hour; teach him to Google, and he will learn for a lifetime." HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/ http://incolor.inetnebr.com/jshorney http://www.nebraskaghosts.org _______________________________________________ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
