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Thanks for the compliment on my regular use TV.
I've never owned an RCA higher than CTC-4 so I'm not dead certain, but I'd say my Silvertone is probably a CTC-12 or 15 clone (given chassis layout and lack of the goofy fly the 16 used). I can post a picture of the tube layout and give the model or Sam's # of the schematic tonight if you want it.
That pic is 3+ years old. Presently It needs a convergence setup, line voltage here causes slight horizontal under-scan on right (sometimes), sometimes needs a smack after warmup for the chroma osc. to synch, and there is a steep brightness/contrast dip a moment after warm up that goes away after a couple of minutes (which I've failed to pinpoint), and the DTV station that the test pattern came from stopped transmitting it (I wish I had taped it...Have not seen a better color bar signal since). I wish they had opted for a hand wired chassis as it seems like about half the maintenance I put in to it is PCB/solder and tube socket related.
However I may end up posting some more awesome screenshots from it on VK after Thanksgiving since I plan to switch from wired VCR RF signal to wireless agile-modulator signaling then, and many video issues such as distortion of high contrast text, text buzz in sound, high contrast monochrome producing color ringing, etc. seemed to be eliminated by the agile mod. The best live video quality I can recall that set making occurred during signal strength/quality feasibility tests of the agile modulators several weeks ago.
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