GE 115 troubleshooting

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GE 115 troubleshooting

gregb
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Posts: 599
Threads: 24
Joined: Jan 2014
City: Edmonton AB CA

#14

04-26-2016, 03:34 PM

Does the AVC voltage vary as you tune on and off a station? Check that on both the 12SA7 pin 8 and 12SK7 pin 4 tube, it should be a slightly negative value that goes more negative as a station is tuned in.
One of those two tubes could also be gassy and I would try the 12SK7 first.

Gregb

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GE 115 troubleshooting - by Eric - 04-22-2016, 04:27 PM

RE: GE 115 troubleshooting - by Eliot Ness - 04-22-2016, 05:35 PM

RE: GE 115 troubleshooting - by Eric - 04-22-2016, 06:51 PM

RE: GE 115 troubleshooting - by Arran - 04-23-2016, 03:20 AM

RE: GE 115 troubleshooting - by Eric - 04-23-2016, 09:25 AM

RE: GE 115 troubleshooting - by Radioroslyn - 04-23-2016, 11:19 AM

RE: GE 115 troubleshooting - by Eric - 04-23-2016, 01:51 PM

RE: GE 115 troubleshooting - by David - 04-23-2016, 08:25 PM

RE: GE 115 troubleshooting - by Eric - 04-23-2016, 08:59 PM

RE: GE 115 troubleshooting - by Joe Rossi - 04-24-2016, 10:17 AM

RE: GE 115 troubleshooting - by David - 04-25-2016, 08:38 PM

RE: GE 115 troubleshooting - by Eric - 04-26-2016, 02:40 PM

RE: GE 115 troubleshooting - by Radioroslyn - 04-26-2016, 03:27 PM

RE: GE 115 troubleshooting - by gregb - 04-26-2016, 03:34 PM

RE: GE 115 troubleshooting - by Eric - 04-27-2016, 04:31 PM

RE: GE 115 troubleshooting - by John R - 04-27-2016, 05:40 PM

RE: GE 115 troubleshooting - by gregb - 04-27-2016, 07:25 PM

RE: GE 115 troubleshooting - by Eric - 04-28-2016, 10:31 AM

RE: GE 115 troubleshooting - by Eric - 04-28-2016, 10:41 AM

RE: GE 115 troubleshooting - by Radioroslyn - 04-28-2016, 01:04 PM

RE: GE 115 troubleshooting - by Eric - 05-01-2016, 07:23 PM

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