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  #31  
Old 04-23-2016, 11:13 PM
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ohohyodafarted ohohyodafarted is offline
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Congrats on getting it going Nick. The chassis reminds me a lot of MOTO chassis, a gobbldygook hodgepodge nightmare. Not nice and orderly like a RCA. God knows why they work at all, but they do.
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  #32  
Old 04-24-2016, 05:10 AM
snelson903 snelson903 is offline
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that is a awesome set, look's all original to .
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  #33  
Old 04-24-2016, 12:55 PM
dieseljeep dieseljeep is offline
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According to the code-date stamp on the label, the CRT is from 1960. Sears Silvertone replacement CRT's were always sourced by Sylvania.
The original CRT was probably an RCA.
The original owner might've had a maintenance agreement from Sears. That would explain all the Silvertone branded tubes.
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  #34  
Old 04-24-2016, 01:05 PM
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miniman82 miniman82 is offline
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Thanks Bob, it is a mess isn't it? lol

Dave, I assume you're looking at the numbers '016' on the label? I guess that means 16th week of 1960, so it probably is a replacement. What makes you think the original was an RCA? The other Sears set I got from the same house is just like this one, all original and untouched (CRT replacement aside). The owner was very proud of his Sears brand items, and probably had service agreements on all of it.

Next task will be carefully replacing the CRT base with a new one, don't suppose anyone has a spare Silvetone base for me? That's gotta be a rare item, if it even exists. Probably just put a generic one on there, anyone got one with no markings that could be donated to the cause? I'll look for a brightener at the museum, but don't know if they have one.
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  #35  
Old 04-24-2016, 01:39 PM
MRX37 MRX37 is offline
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Ya know, well this might not be available in your case but with 3D printers and laser scanners, it's possible to replicate things like bases and other parts for these TV's.

Wouldn't it be neat to download a file with the 3D information for, say a knob that you're missing, then pay a few bucks for a 3D printer to make one?
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  #36  
Old 04-24-2016, 01:56 PM
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Eric H Eric H is offline
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I do have a Silvertone base I saved from a junk tube, however it's a 1961 date code and has an RCA 274 EIA code.
It's yours if you want it.
Attached Images
File Type: jpg silvertonebase.jpg (29.2 KB, 50 views)
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  #37  
Old 04-24-2016, 04:10 PM
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miniman82 miniman82 is offline
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Man, vk comes through again! I'll take it, how much you need to change vet shipping and whatnot to 20634?

Thanks Eric!
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  #38  
Old 04-24-2016, 04:36 PM
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P.M. sent.
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  #39  
Old 04-24-2016, 04:47 PM
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miniman82 miniman82 is offline
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Thanks Eric, I love this place!
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  #40  
Old 04-25-2016, 09:04 AM
dieseljeep dieseljeep is offline
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Quote:
Originally Posted by dieseljeep View Post
According to the code-date stamp on the label, the CRT is from 1960. Sears Silvertone replacement CRT's were always sourced by Sylvania.
The original CRT was probably an RCA.
The original owner might've had a maintenance agreement from Sears. That would explain all the Silvertone branded tubes.
It seems, RCA made all the 21AX CRT's. Sylvania might've just regunned them or if it was a new tube, Sylvania bought it from RCA and relabeled it.
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  #41  
Old 04-25-2016, 09:27 AM
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To add to the mystery, this tube has no neck weld which would tend to indicate it was rebuilt. But the base did have a 274 EIA code on it which is RCA.
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  #42  
Old 04-25-2016, 11:16 AM
dieseljeep dieseljeep is offline
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Quote:
Originally Posted by miniman82 View Post
To add to the mystery, this tube has no neck weld which would tend to indicate it was rebuilt. But the base did have a 274 EIA code on it which is RCA.
Every early color set that I've seen, that used a 21AX CRT, that CRT had a EIA 274 on it. That was a GE, Hoffman, Motorola and an Admiral. It had the OEM brand name on it, with a 274 EIA.
IIRC, Sylvania was the main supplier to Sears for their replacement tubes. The OEM tubes were made by several different Mfg's.
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  #43  
Old 06-03-2016, 04:40 PM
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Chassis is now moved to the designated resto bench in the garage, where recapping can take place. I've already stuffed the can 'lytics and replaced a few wax tubulars, but there are many more discrete 'lytics and other assorted caps that need to be rooted out before I fire it up again. I also need to figure out how exactly to connect the horizontal deflection coils to the test jig: the chassis has a center tapped setup where the center tap is cap coupled back to the flyback, while the test jig doesn't have a center tap at all. I can probably do one of two things, either leave the CT out or add one to the jig's yoke and see what happens. If I can't get it going, I'll just have to wait till cap replacement is done then put the CRT back in.

Eric: the replacement base worked flawlessly, thank you very much. I was even able to use a brass wire wheel to remove the 21FJP22 mark on it, it disappeared leaving shiny black plastic behind and you can't even tell it was ever replaced.

Here's where I'm currently at:


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  #44  
Old 06-03-2016, 04:45 PM
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Here's the new base on the CRT.

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  #45  
Old 06-03-2016, 04:59 PM
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Quote:
Originally Posted by miniman82 View Post
Here's the new base on the CRT.
It looks great, glad it worked out well.
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