Philco 89B headaches

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Philco 89B headaches

sparkydave
Junior Member

Posts: 9
Threads: 2
Joined: Jun 2014
City: Macedonia, OH

01-04-2016, 08:59 PM

Thanks guys, I didn't bake the coil. From markmokris' post, I think I've got it right in that I used #38 wire, and according to my notes I did count 27 turns on it. The latest development was I had briefly bypassed the tickler with a jumper to measure DC bias on the tube, and when I removed the jumper it won't oscillate at all now. Maybe I've got some other issues yet. Not ruling out a flaky 36 tube, I recall it was testing a little weak on my emission tester.

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Philco 89B headaches - by sparkydave - 12-22-2015, 06:35 PM

RE: Philco 89B headaches - by Ron Ramirez - 12-22-2015, 08:23 PM

RE: Philco 89B headaches - by markmokris - 12-27-2015, 12:41 PM

RE: Philco 89B headaches - by sparkydave - 01-04-2016, 08:59 PM

RE: Philco 89B headaches - by Phlogiston - 01-05-2016, 04:16 PM

RE: Philco 89B headaches - by sparkydave - 01-07-2016, 09:12 PM

RE: Philco 89B headaches - by Warren - 01-08-2016, 05:21 PM

RE: Philco 89B headaches - by klondike98 - 01-07-2016, 11:03 PM

RE: Philco 89B headaches - by OZ4 - 01-08-2016, 07:25 PM

RE: Philco 89B headaches - by sparkydave - 01-10-2016, 12:33 PM

RE: Philco 89B headaches - by sparkydave - 01-10-2016, 02:12 PM

RE: Philco 89B headaches - by klondike98 - 01-10-2016, 02:42 PM

RE: Philco 89B headaches - by AI2V - 01-13-2016, 04:48 PM

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