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Zenith 7-S-240 Eye tube question
05-30-2016, 06:12 PM
I think the 6U5/6G5's have about the same sensitivity as the 6T5, requiring ~ -22 volts to close. I'd check all the resistors in the AVC chain to make sure they haven't drifted. You might also want to measure the voltage going to the eye tube to see what it is reading.
http://www.magiceyetubes.com/substitutions.htm John KK4ZLF Lexington, KY "illegitimis non carborundum"
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Messages In This Thread
Zenith 7-S-240 Eye tube question - by Eric - 05-30-2016, 03:37 PM
RE: Zenith 7-S-240 Eye tube question - by Eliot Ness - 05-30-2016, 06:12 PM
RE: Zenith 7-S-240 Eye tube question - by morzh - 05-30-2016, 08:34 PM
RE: Zenith 7-S-240 Eye tube question - by Radioroslyn - 05-31-2016, 09:18 AM
RE: Zenith 7-S-240 Eye tube question - by Eric - 05-31-2016, 01:00 PM
RE: Zenith 7-S-240 Eye tube question - by Radioroslyn - 05-31-2016, 01:37 PM
RE: Zenith 7-S-240 Eye tube question - by Eric - 06-01-2016, 01:41 PM
RE: Zenith 7-S-240 Eye tube question - by Radioroslyn - 06-01-2016, 06:08 PM
RE: Zenith 7-S-240 Eye tube question - by Eliot Ness - 06-01-2016, 07:48 PM
RE: Zenith 7-S-240 Eye tube question - by Eric - 06-02-2016, 08:04 AM
RE: Zenith 7-S-240 Eye tube question - by Eric - 06-02-2016, 04:20 PM
RE: Zenith 7-S-240 Eye tube question - by Eliot Ness - 06-02-2016, 06:47 PM
RE: Zenith 7-S-240 Eye tube question - by Eric - 06-03-2016, 06:02 PM
RE: Zenith 7-S-240 Eye tube question - by Eliot Ness - 06-04-2016, 07:15 AM
RE: Zenith 7-S-240 Eye tube question - by Eric - 06-04-2016, 01:21 PM
RE: Zenith 7-S-240 Eye tube question - by Eliot Ness - 06-04-2016, 02:09 PM
RE: Zenith 7-S-240 Eye tube question - by Radioroslyn - 06-04-2016, 02:31 PM
RE: Zenith 7-S-240 Eye tube question - by Eric - 06-05-2016, 11:13 AM
RE: Zenith 7-S-240 Eye tube question - by Eliot Ness - 06-05-2016, 02:04 PM
RE: Zenith 7-S-240 Eye tube question - by Eric - 06-05-2016, 03:14 PM
RE: Zenith 7-S-240 Eye tube question - by Eric - 06-06-2016, 03:55 PM
RE: Zenith 7-S-240 Eye tube question - by Eliot Ness - 06-06-2016, 05:34 PM
RE: Zenith 7-S-240 Eye tube question - by Eric - 06-07-2016, 04:28 PM
RE: Zenith 7-S-240 Eye tube question - by Eric - 06-07-2016, 04:29 PM
RE: Zenith 7-S-240 Eye tube question - by Radioroslyn - 06-07-2016, 06:24 PM
RE: Zenith 7-S-240 Eye tube question - by Eric - 06-07-2016, 07:10 PM
RE: Zenith 7-S-240 Eye tube question - by Kenneth F. Besso Jr. - 06-08-2016, 10:35 AM
RE: Zenith 7-S-240 Eye tube question - by Eric - 06-08-2016, 04:02 PM
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