Yes, C192 was also part of the Hayseed recapping. I will check D16.
The erratic operation (better characterized as failing to stay in oscillation) was there both before and after the recapping, with the same modus operandi. I do also have a spare 100khz crystal, same form factor, I suppose I could try that too. Chuck, K1OM On Mon, Oct 25, 2010 at 4:37 PM, Garey Barrell <[email protected]> wrote: > Chuck - > > Does Tom's kit include C192? I think it does. If not .... > > Also D16. > > And with the erratic operation, solder joints on C190, etc. Tough places > to solder. > > 73, Garey - K4OAH > Glen Allen, VA > > Drake 2-B, 2-C/2-NT, 4-B, C-Line& > TR-4/C Service Supplement CDs > <www.k4oah.com> > > > Chuck Grandgent wrote: > >> My R4B crystal calibrator has been acting erratically. >> >> Often does not function until the R4B has been on for 20 minutes or so. >> When I first turn on the calibrator function, I can initially hear it for >> maybe 100msec, but it does not stay in oscillation. >> And when it's being persnickety, when it does stay in oscillation, it >> doesn't sound like a clean sine-wave. >> >> Last night it was acting like this. But just now, it was fine. Came up >> right off, sounded fine, and was working OK on 15 meters (didn't try 10 >> meters). >> >> I recently did the Hayseed re-capping, so C190 was replaced, and after the >> recapping it seemed to really help the crystal calibrator function, as it >> was much worse before the recapping. >> >> What else might I check ? I see the calibrator circuitry on the >> schematic. My scope is still down for repairs. >> >> Chuck, K1OM >> >> >> _______________________________________________ >> Drakelist mailing list >> [email protected] >> http://mailman.zerobeat.net/mailman/listinfo/drakelist >> >> > > _______________________________________________ > Drakelist mailing list > [email protected] > http://mailman.zerobeat.net/mailman/listinfo/drakelist >
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