Silvertone 7140

[Electronic M]

Wow, what an unusual design. Definately not a direct clone of a CTC-4. I wonder if any more examples of that chassis still exist.

[Phil Nelson]

Originally Posted by Electronic M

Definately not a direct clone of a CTC-4.

Yes, it uses a different color demodulation method, for one. Not to mention the different physical layout. And what's with that vertical centering control -- a dual pot with a 500-mfd non-polarized electrolytic. This set should make a very interesting restoration story.

Phil Nelson
Phil's Old Radios
http://antiqueradio.org/index.html

[miniman82]

Originally Posted by Tom9589

Is it missing the HV cage, or did they just have all those tubes and the flyback out in the open?

It's missing, we searched the whole house looking for it but no luck. It's just a perforated steel box that covers the fly and horizontal related tubes, you can see it clearly in the full Sams. I only scanned the schematic info for ETF to upload, my computer can't handle large files for some reason. Probably time for an upgrade.

Originally Posted by old_tv_nut

How's the CRT? That looks like a unique mount/insulator boot/edge magnet setup.

Wayne, the CRT tests very good but the base has seen better days. Probably going to have to load it up with sensor safe sillycone to shore it up, I'm too nervous to attempt surgury on a good AXP. The insulators around the tube are actually pretty close to what the Admiral Ambassador has, and I swear Anchor Co. had a monopoly on HV insulators back in the day- they made every single boot for every AXP set I have! lol

Originally Posted by Electronic M

Wow, what an unusual design. Definately not a direct clone of a CTC-4. I wonder if any more examples of that chassis still exist.

This is the only one known according to ETF, but that doesn't mean there aren't more out there. Never seen a color set this early with the chassis around the tube like this, but seen it a lot with B&W stuff. It's about the same size/weight as the Admiral Ambassador that came from Canada, just with the circuits around the CRT instead of on a flat chassis.

Originally Posted by Phil Nelson

Yes, it uses a different color demodulation method, for one. Not to mention the different physical layout. And what's with that vertical centering control -- a dual pot with a 500-mfd non-polarized electrolytic. This set should make a very interesting restoration story.

Right, I guess I just meant that it has the same doorknob and HV shorting plug so it has to have some borrowed parts at least.