Blonde Andrea T-VK12

[Gregb]

WOW Clark, I must say that is one super clean set. Good luck with the resto, it will be a great set when done.

Gregb

[decojoe67]

In all my years of being into vintage TV's I never saw that model in blonde! It's a scarce model for sure, although the value would probably be close to the mahogany version.
I actually found an excellent mahogany version at an estate sale many years ago for $50 and sold it soon after for a very good profit. It's a massive tabletop set, but a high quality set for sure. Enjoy it and good luck with the resto.

[IsthmusTV]

Hi all,

I've been working on this set in fits and starts. This weekend, I finally finished the recapping. I decided to mount the electrolytics under the chassis because there was plenty of room and some of the cans are hard to get at:


I replaced every paper and elecrolytic cap except one, C7. It's a 2 uF at 25 Volt electrolytic across the output of the 6AL5 ratio detector. It's mounted in a tube of copper sheet and fastened to the chassis with a screw under a terminal strip. I'm guessing that this is for shielding, but it almost looks more like a heat sink. Anybody know what this is? Do I need to keep this copper thing in place when replacing it with a modern cap? I think I'll leave it in place for the initial power up.


I replaced the disintegrated power cord. It had a molded strain relief, so I used a rubber grommet in the hole.



I may have problem with a couple of these peaking coils. I can't seem to get a stable resistance measurement through the two on right:


I'm very impressed with the quality of the resistors that Andrea used. I have yet to find one out of spec.

Well, that's the progress to date. I hope to have some time this weekend to do a controlled power up with the CRT in place.

-Clark

[Kevin Kuehn]

Great work, Clark. Not sure what to make of the copper shielded electrolytic. Maybe because the old ones didn't have the neg lead tied to an outer metal can. But I don't recall seeing that practiced on any other ratio detector circuit. Possibly Andrea was just being very picky with their design, trying to keep hum out of the audio. Although it seems copper would be more of an RF shield than magnetic.