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Precision E-200-C
#22

Thanks again Terry. It seems to be "functional" although the band calibration is off. I'll address that later. The RF controls were very scratchy, at least RF-1 was. Spray cleaner didn't work so I removed them to open them up for inspection. RF-1 pot is defiantly bad, the other cleaned up but here is the problem. RF-1 is marked with 20000 (assuming 20k) RF-2 is clearly marked and measures as 25,000 ohms. The problem is the schematic shows both of these controls as being 200 ohm! Why would there be such a huge difference. They physically and brand are not the same so it is safe to assume they were replacements. So do I put 200 ohm or 20k ohm pots back in? Both are carbon wiper, but audio or linear taper. How is that determined?


Messages In This Thread
Precision E-200-C - by Mike L - 09-17-2016, 06:48 PM
RE: Precision E-200-C - by KCMike - 09-17-2016, 08:50 PM
RE: Precision E-200-C - by Bradley Rush - 11-20-2016, 10:33 PM
RE: Precision E-200-C - by Bradley Rush - 11-21-2016, 12:34 AM
RE: Precision E-200-C - by Mike L - 11-21-2016, 07:49 PM
RE: Precision E-200-C - by KCMike - 11-21-2016, 10:44 PM
RE: Precision E-200-C - by Radioroslyn - 11-21-2016, 11:35 PM
RE: Precision E-200-C - by morzh - 11-22-2016, 11:00 AM
RE: Precision E-200-C - by Radioroslyn - 11-22-2016, 01:21 PM
RE: Precision E-200-C - by morzh - 11-22-2016, 01:26 PM
RE: Precision E-200-C - by Radioroslyn - 11-22-2016, 03:00 PM
RE: Precision E-200-C - by morzh - 11-22-2016, 03:10 PM
RE: Precision E-200-C - by Mondial - 11-23-2016, 09:22 PM
RE: Precision E-200-C - by Radioroslyn - 11-24-2016, 08:10 AM
RE: Precision E-200-C - by Mondial - 11-24-2016, 09:34 AM
RE: Precision E-200-C - by Radioroslyn - 11-24-2016, 11:36 AM
RE: Precision E-200-C - by Mike L - 11-26-2016, 04:32 PM
RE: Precision E-200-C - by Mike L - 12-24-2016, 02:40 PM
RE: Precision E-200-C - by Radioroslyn - 12-24-2016, 03:41 PM
RE: Precision E-200-C - by Mike L - 12-24-2016, 04:49 PM
RE: Precision E-200-C - by Radioroslyn - 12-24-2016, 06:06 PM
RE: Precision E-200-C - by Mike L - 12-31-2016, 08:33 AM
RE: Precision E-200-C - by Radioroslyn - 12-31-2016, 11:55 PM
RE: Precision E-200-C - by Mike L - 01-01-2017, 04:27 PM



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