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Old 03-08-2009, 05:06 PM
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Join Date: Jul 2004
Location: Rancho Sahuarita
Posts: 7,745
And now the (slowly) continiung saga...

Thanks to John Folsom, I got a replacement coil (images attached). It doesn't look like the original due to having 2 windings for multiple uses. I decided to try using just the core and the mount with the old coil, which seems to have worked well (won't know for sure until I fire it up). First tried the core to make sure it would fit without binding. Then tried screwing the brass screw intot he old mount, but apparently the mount was damaged, so gave up and replaced the mount. As you can see, the replacement came with two different sized mounts. The smaller one fit the old coil.

I have had the mica caps for about 2 weeks, but no time to work on the set - will fix that tonight or in the coming week.

News on the DC convergence pots is not so good. The blue pot wiper is definitely got a big bad (open) spot. Also found out from looking at the wiring and verifying on the RCA schematic that it's not identical to green or red physically because it rotates the opposite way and the tap is towards the other end. Anyway, Cailube doesn't fix it, and in the process of checking all three I discovered the red DC pot has a bad spot too. Have to think some more aobut how to fix these
Attached Files
File Type: pdf replacement blue amplitude coil.pdf (96.2 KB, 26 views)
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