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Fisher 800B Restoration
#8

It sounds like you may have no negative bias on the output tubes. It has already been powered up so it does not appear to have any shorts. 

Then before doing anything else, first connect your meter between negative of C98 and ground. Apply full line voltage momentarily so you can get a reading. If its less than 22-24 volts negative then do not operate the receiver until the bias supply is repaired.


Messages In This Thread
Fisher 800B Restoration - by KCMike - 02-10-2017, 08:26 PM
RE: Fisher 800B Restoration - by Mondial - 02-10-2017, 11:19 PM
RE: Fisher 800B Restoration - by TV MAN - 02-11-2017, 09:48 AM
RE: Fisher 800B Restoration - by KCMike - 02-11-2017, 10:19 AM
RE: Fisher 800B Restoration - by Mondial - 02-11-2017, 11:05 AM
RE: Fisher 800B Restoration - by morzh - 02-11-2017, 11:29 AM
RE: Fisher 800B Restoration - by KCMike - 02-11-2017, 11:30 AM
RE: Fisher 800B Restoration - by Mondial - 02-11-2017, 11:43 AM
RE: Fisher 800B Restoration - by KCMike - 02-11-2017, 12:21 PM
RE: Fisher 800B Restoration - by Mondial - 02-11-2017, 12:29 PM
RE: Fisher 800B Restoration - by KCMike - 02-11-2017, 03:58 PM
RE: Fisher 800B Restoration - by Mondial - 02-11-2017, 04:49 PM
RE: Fisher 800B Restoration - by TV MAN - 02-12-2017, 02:34 PM
RE: Fisher 800B Restoration - by KCMike - 02-12-2017, 04:03 PM
RE: Fisher 800B Restoration - by Ron Ramirez - 02-12-2017, 04:31 PM
RE: Fisher 800B Restoration - by TV MAN - 02-12-2017, 08:14 PM
RE: Fisher 800B Restoration - by Ron Ramirez - 02-12-2017, 09:54 PM
RE: Fisher 800B Restoration - by KCMike - 02-12-2017, 10:02 PM
RE: Fisher 800B Restoration - by sam - 02-13-2017, 12:10 PM
RE: Fisher 800B Restoration - by Ron Ramirez - 02-13-2017, 12:27 PM
RE: Fisher 800B Restoration - by TV MAN - 02-13-2017, 12:29 PM
RE: Fisher 800B Restoration - by KCMike - 02-18-2017, 09:11 PM
RE: Fisher 800B Restoration - by Mondial - 02-19-2017, 08:26 AM
RE: Fisher 800B Restoration - by KCMike - 02-19-2017, 06:52 PM
RE: Fisher 800B Restoration - by Mondial - 02-19-2017, 07:34 PM
RE: Fisher 800B Restoration - by KCMike - 02-19-2017, 07:46 PM
RE: Fisher 800B Restoration - by KCMike - 02-21-2017, 10:04 PM
RE: Fisher 800B Restoration - by Mondial - 02-22-2017, 09:05 AM
RE: Fisher 800B Restoration - by TV MAN - 02-22-2017, 11:49 AM
RE: Fisher 800B Restoration - by KCMike - 02-23-2017, 04:36 PM
RE: Fisher 800B Restoration - by KCMike - 02-28-2017, 04:08 PM
RE: Fisher 800B Restoration - by KCMike - 03-02-2017, 10:35 PM
RE: Fisher 800B Restoration - by Clayvu - 04-12-2019, 09:36 PM



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