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21. Re: Topband: Sherwood data (score: 1): Author: James Kearman <jkearman@att.net>; Date: Fri, 16 Feb 2007 10:50:56 -0500; I will raise my glass to this one in particular. "Good" AGC bypasses the best signal processor we have -- our brains -- which can use slight differences in signal amplitude to separate signals. If I; /archives//html/Topband/2007-02/msg00162.html (7,260 bytes)
22. Re: Topband: Cleaning Up Large Air Variables? (score: 1): Author: James Kearman <jkearman@att.net>; Date: Sat, 07 Apr 2007 08:23:36 -0400; I took apart a large Johnson variable that had a heavy accumulation of dust and crud, and was able to wash it in a bucket. I could remove the rotor plates individually but not the stator plates, so i; /archives//html/Topband/2007-04/msg00053.html (8,486 bytes)
23. Re: Topband: Earl K6SE - how it all began (score: 1): Author: James Kearman <jkearman@att.net>; Date: Thu, 03 May 2007 15:16:48 -0400; I found a circuit for a 455 kHz BFO using an IF transformer, but it didn't work. I had to listen for a harmonic of the oscillator, which used a long brass screw to turn the slug, so at least it had e; /archives//html/Topband/2007-05/msg00021.html (8,019 bytes)

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