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  #1  
Old 02-22-2016, 05:46 PM
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miniman82 miniman82 is offline
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Silvertone 7140

Here's a Silvertone roundie I saved recently. Gotta be a rare one, I've never heard of it before. Chassis seems CTC-4ish to me, with the giant hockey puck doorknob cap and HV shorting plug. All original Silvertone brand tubes which test good, so it can't have had a lot of hours on it. Cabinet is beat to hell and back, gonna be another veneer job just like the CTC-7 Ed now owns. That means this one has to wait for at least a year while I catch up on house payments, all my money goes there till further notice. Unless of course someone has a 15GP22 to sell...





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Old 02-22-2016, 05:50 PM
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Here's the Sams on it, Steve was nice enough to put it up on the ETF site.

http://earlytelevision.org/pdf/Silve...sams-388-1.pdf
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Old 02-22-2016, 05:57 PM
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Restoring an admiral c322
 
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Reminds me a lot of a 19CT1 with that bezel.
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Admiral C322C2 Regent (Restoring)
RCA CTC-7 Pensbury (Restored)
RCA CTC-5 Westcott (Restored)
CRA CTC--4 Director 21 (Restoring)
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  #4  
Old 02-22-2016, 09:27 PM
roundscreen roundscreen is offline
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That is one cool set. The metal shield over the front of the yoke, Looks like the ctc5 yoke. Is there a ground wire attached to it? What are you going to do with the grill cloth?
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Old 02-22-2016, 09:45 PM
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528 is Warwick ?

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  #6  
Old 02-22-2016, 10:00 PM
Tom9589 Tom9589 is offline
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Yep, 528 is Warwick.
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  #7  
Old 02-22-2016, 10:02 PM
Tom9589 Tom9589 is offline
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Is it missing an HV cage or did they just have all those tubes and the flyback out in the open?
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Old 02-22-2016, 10:45 PM
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old_tv_nut old_tv_nut is offline
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How's the CRT?
That looks like a unique mount / insulator boot / edge magnet setup.
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  #9  
Old 02-22-2016, 11:14 PM
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ChrisW6ATV ChrisW6ATV is offline
Another CT-100 lives!
 
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Very nice find!
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Old 02-23-2016, 01:50 AM
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Electronic M Electronic M is offline
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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.
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  #11  
Old 02-23-2016, 02:30 AM
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Phil Nelson Phil Nelson is offline
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Quote:
Originally Posted by Electronic M View Post
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.

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  #12  
Old 02-23-2016, 07:44 AM
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miniman82 miniman82 is offline
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Quote:
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.


Quote:
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

Quote:
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.

Quote:
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.
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Old 02-23-2016, 08:32 AM
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Steve McVoy Steve McVoy is offline
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The 1954-55 Motorola color sets had a vertical color chassis, but not really around the CRT.

http://www.earlytelevision.org/motorola_19ck2.html
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  #14  
Old 02-23-2016, 08:57 AM
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DavGoodlin DavGoodlin is offline
Motorola Minion
 
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Very interesting indeed! No PC boards either.
This will be fun to follow when you post the play by play.
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Old 02-23-2016, 01:22 PM
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benman94 benman94 is offline
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The circuit is very similar to the licensee circuit Hoffman used. Should be a pretty decent performer when it's all buttoned up! Very nice set
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