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Philco 89B headaches
markmokris
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Posts: 109
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City: Ann Arbor, Michigan
#3

12-27-2015, 11:41 AM
Sparkydave,

I have been through this a number of times now.  I just made this post a couple of days ago, and maybe it will help you.

http://philcoradio.com/phorum/showthread.php?tid=13746

I have rewound tickler coils on 89/19 cathedrals probably at least a dozen times.  I experienced the exact same problem,with the oscillator dropping out below 1000 MHz, many, many times.

By the way, I used 8,200 ohms for my cathode resistor.  I didn't bake the coil, but I wouldn't hesitate to do that.

That post above contains what I think is the secret sauce.

Hope that helps.

Mark
(This post was last modified: 12-27-2015, 11:43 AM by markmokris.)
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Messages In This Thread
Philco 89B headaches - by sparkydave - 12-22-2015, 05:35 PM
RE: Philco 89B headaches - by Ron Ramirez - 12-22-2015, 07:23 PM
RE: Philco 89B headaches - by markmokris - 12-27-2015, 11:41 AM
RE: Philco 89B headaches - by sparkydave - 01-04-2016, 07:59 PM
RE: Philco 89B headaches - by Phlogiston - 01-05-2016, 03:16 PM
RE: Philco 89B headaches - by sparkydave - 01-07-2016, 08:12 PM
RE: Philco 89B headaches - by Warren - 01-08-2016, 04:21 PM
RE: Philco 89B headaches - by klondike98 - 01-07-2016, 10:03 PM
RE: Philco 89B headaches - by OZ4 - 01-08-2016, 06:25 PM
RE: Philco 89B headaches - by sparkydave - 01-10-2016, 11:33 AM
RE: Philco 89B headaches - by sparkydave - 01-10-2016, 01:12 PM
RE: Philco 89B headaches - by klondike98 - 01-10-2016, 01:42 PM
RE: Philco 89B headaches - by AI2V - 01-13-2016, 03:48 PM



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