[Collins] 75A4 sensitivity

[Ed Tanton]

One quick thing you could do that might isolate it to a stage: if you have 
a level-adjustable signal generator, you might set it to a microvolt or so, 
on a fequuency of your choice, and take a 'scope look at the individual 
stages as the signal comes in and goes out. If you can find a stage where 
it seems to suddenly show a lot of 'stuff' on top of the sine wave, or the 
gain just seems a whole lot more than the previous stage(s), then perhaps 
that'll narrow things down for you.


73 Ed Tanton N4XY <n4xy@earthlink.net>

Ed Tanton N4XY
189 Pioneer Trail
Marietta, GA 30068-3466

website: http://www.n4xy.com

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