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Zenith IF adjustment strangeness
#4

Guys, I'm measuring AVC voltage off the eye tube. Can't recall the pin. Anyhow, I just got done checking my work. Sure as heck, if you peak IF adjustment "B" to it's lowest negative voltage setting, it's peaked! I know this sounds stupid, but that's what's happening. The other three, peak high(negative) as they should. Like I said. I can peak adjustments A C and D. then peak "B" on a station, and I get the same result. B is at it's lowest voltage(negative). Now, I'm injecting the signal at the IF amp. I'm not coupling in, just getting the sig gen lead next to it. Enough to pick up the signal. Strange, it's gotta be me. Ed, how are you injecting your IF signal?

-Brian
If you collect or are interested in antique telephones, please visit Classic Rotary Phones
http://www.classicrotaryphones.com/forum/index.php


Messages In This Thread
Zenith IF adjustment strangeness - by BDM - 07-26-2008, 12:52 AM
[No subject] - by exray - 07-26-2008, 05:16 AM
[No subject] - by etech - 07-26-2008, 09:01 AM
[No subject] - by BDM - 07-26-2008, 07:40 PM
[No subject] - by etech - 07-26-2008, 08:46 PM
[No subject] - by BDM - 07-26-2008, 11:22 PM
RE: Zenith IF adjustment strangeness - by BDM - 07-27-2008, 01:27 AM
[No subject] - by Texasrocker - 07-27-2008, 01:35 AM
[No subject] - by etech - 07-27-2008, 08:02 PM
[No subject] - by BDM - 07-27-2008, 08:10 PM
[No subject] - by Doug Houston - 08-09-2008, 09:01 PM



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