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Philco 640 - Need Some Help
#6

The very first thing to do is, touch the grid cap of the 85 tube with your finger. Do you get a loud hum? Next, place another radio next to the radio under test to see if you can tune the local oscillator of the nonworking radio.

Steve

M R Radios   C M Tubes


Messages In This Thread
Philco 640 - Need Some Help - by Geoff - 06-29-2016, 06:07 PM
RE: Philco 640 - Need Some Help - by Radioroslyn - 06-29-2016, 07:52 PM
RE: Philco 640 - Need Some Help - by Geoff - 06-29-2016, 08:05 PM
RE: Philco 640 - Need Some Help - by Geoff - 06-30-2016, 02:37 AM
RE: Philco 640 - Need Some Help - by Radioroslyn - 06-30-2016, 07:45 AM
RE: Philco 640 - Need Some Help - by Steve Davis - 06-30-2016, 10:06 AM
RE: Philco 640 - Need Some Help - by markmokris - 07-01-2016, 11:59 AM
RE: Philco 640 - Need Some Help - by Geoff - 07-01-2016, 04:00 PM
RE: Philco 640 - Need Some Help - by Geoff - 07-01-2016, 04:01 PM
RE: Philco 640 - Need Some Help - by Geoff - 07-01-2016, 04:02 PM
RE: Philco 640 - Need Some Help - by Geoff - 07-01-2016, 04:04 PM
RE: Philco 640 - Need Some Help - by Geoff - 07-01-2016, 04:10 PM
RE: Philco 640 - Need Some Help - by Geoff - 07-01-2016, 04:16 PM
RE: Philco 640 - Need Some Help - by Radioroslyn - 07-01-2016, 07:19 PM
RE: Philco 640 - Need Some Help - by Geoff - 07-01-2016, 07:20 PM
RE: Philco 640 - Need Some Help - by Radioroslyn - 07-01-2016, 08:19 PM
RE: Philco 640 - Need Some Help - by Geoff - 07-02-2016, 01:02 AM
RE: Philco 640 - Need Some Help - by Geoff - 08-04-2016, 06:39 PM
RE: Philco 640 - Need Some Help - by Geoff - 08-04-2016, 08:08 PM
Philco 640 Shadow Meter Bulb Type - by Geoff - 08-04-2016, 07:04 PM



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