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New Project - 39-55
#28

(03-10-2012, 10:59 AM)ipwizard Wrote:  It's a code 121.

The schematic on nostalgia air also shows a 6J8 but the internals show a pentigrid convertor like a 6A8 not a triode-heptode. The schematic in my 1939 Philco book also shows it marked as a 6J8 but shows a pentigrid convertor like a 6A8. The 39-116 definately uses a 6A8 but since the 39-55 is basically a budget minded mystery control set with only the broadcast band I don't know why they would use a different tube. The only other Philco models that show a 6J8 in the tube complement are in the Tropic series, and those show a triode and a heptode section in the tube.
Regards
Arran



Messages In This Thread
New Project - 39-55 - by ipwizard - 02-28-2012, 03:26 PM
RE: New Project - 39-55 - by codefox1 - 02-28-2012, 03:40 PM
RE: New Project - 39-55 - by ipwizard - 02-28-2012, 03:46 PM
RE: New Project - 39-55 - by ipwizard - 02-28-2012, 03:45 PM
RE: New Project - 39-55 - by ipwizard - 02-28-2012, 04:00 PM
RE: New Project - 39-55 - by Glenn Roberts - 02-28-2012, 04:45 PM
RE: New Project - 39-55 - by Bob Andersen - 02-28-2012, 06:02 PM
RE: New Project - 39-55 - by Ron Ramirez - 02-28-2012, 06:06 PM
RE: New Project - 39-55 - by ipwizard - 02-28-2012, 06:13 PM
RE: New Project - 39-55 - by Ron Ramirez - 02-28-2012, 06:17 PM
RE: New Project - 39-55 - by ipwizard - 02-28-2012, 07:01 PM
RE: New Project - 39-55 - by Ron Ramirez - 02-28-2012, 07:11 PM
RE: New Project - 39-55 - by codefox1 - 02-28-2012, 10:23 PM
RE: New Project - 39-55 - by ipwizard - 02-28-2012, 10:43 PM
RE: New Project - 39-55 - by codefox1 - 02-29-2012, 12:31 AM
RE: New Project - 39-55 - by ipwizard - 02-29-2012, 11:32 PM
RE: New Project - 39-55 - by codefox1 - 03-01-2012, 06:04 AM
RE: New Project - 39-55 - by ipwizard - 03-06-2012, 05:37 PM
RE: New Project - 39-55 - by Arran - 03-06-2012, 08:14 PM
RE: New Project - 39-55 - by ipwizard - 03-06-2012, 06:04 PM
RE: New Project - 39-55 - by ipwizard - 03-06-2012, 10:27 PM
RE: New Project - 39-55 - by Arran - 03-09-2012, 11:52 PM
RE: New Project - 39-55 - by codefox1 - 03-06-2012, 08:34 PM
RE: New Project - 39-55 - by Bob Andersen - 03-06-2012, 11:03 PM
RE: New Project - 39-55 - by ipwizard - 03-06-2012, 11:21 PM
RE: New Project - 39-55 - by ipwizard - 03-07-2012, 12:42 AM
RE: New Project - 39-55 - by Ron Ramirez - 03-11-2012, 07:51 AM
RE: New Project - 39-55 - by ipwizard - 03-10-2012, 10:59 AM
RE: New Project - 39-55 - by Arran - 03-10-2012, 08:15 PM
RE: New Project - 39-55 - by ipwizard - 03-11-2012, 12:45 AM
RE: New Project - 39-55 - by Ron Ramirez - 03-11-2012, 07:38 AM
RE: New Project - 39-55 - by Ron Ramirez - 03-11-2012, 09:51 AM
RE: New Project - 39-55 - by w4rtc - 03-11-2012, 10:03 AM
RE: New Project - 39-55 - by ipwizard - 04-06-2012, 12:04 AM
RE: New Project - 39-55 - by ipwizard - 04-11-2012, 12:10 AM
RE: New Project - 39-55 - by ipwizard - 04-13-2012, 12:47 AM
RE: New Project - 39-55 - by codefox1 - 04-13-2012, 01:11 AM



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