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Banderson, thanks for the link to your scans! That makes things much easier for me. FWIW, my chassis is a late version.
Well, time for a little update:
I started recapping early this week, and just today felt I had done enough to try to power it up. At this point, I had replaced all of the paper caps, the HV tubulars, and the lytics. I was rewarded with a fine picture! After a few adjustments, I was very happy with the result-the crt is nice and bright, indicating its low use.
After running for about thirty minutes, I could see some vertical issues, from loss of sync to some shrinking, but nothing serious enough that readjustment wouldn't bring back the picture. Audio was a little quiet, so I began measuring B+ and saw it was about thirty volts too low. My concern went to the selenium rectifiers, which I planned to remove anyway.
I dropped in new diodes, and wired each of them in with a 50 ohm resistor to create the appropriate voltage drop of the old seleniums. At the next powerup, poof! A little puff of smoke, and I knew the ballast was toast. As I suspected, the section of the ballast that forms a 200 ohm choke, which meets the diode's output, was what snapped open.
Checking my work, the install was correct (proper diode polarity, wiring in it's proper place, no shorts) but maybe the new diode/resistor setup wasn't dropping enough for that poor ballast. Oh well. I did snap get some screen shots, so that will have to satisfy me for now, until I can restore power. I'll post those pictures sometime later today.
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