Posts: 239
Threads: 10
Joined: Dec 2013
City: Columbia, SC
 Oops, can't believe I misread that.. And the tube number. Wow. Swapping it, and resoldering the grid cap of the old one fixed the noise. Thanks!
This morning it was oscillating very poorly, and died every time it was tuned through 850-900. I decided to redo the coil again. This time it came out perfect, exactly the way I wanted to do it in the first place. Put it back in, and I'm back to square one...  Nothing below 1200 this time. The last possibility in my mind is that Radio Daze used bags with some sort of ESD protective material that is messing with the feedback.
From other people who have had success, what is the best substrate to use between the windings? I've also tried teflon tape, which sort of worked, but made a good winding nearly impossible.
Messages In This Thread
RE: Model 89 Cathedral - by skyscraper - 03-13-2014, 01:44 PM
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Recent Posts
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HiFi (Chifi) tube amp build - but my own design.
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here is this one
sincerely Richardradiorich — 12:45 AM |
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| Hello roy,
here is a link to the schematic .
Sincerely Richardradiorich — 11:54 PM |
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