Silvertone 7140

[dieseljeep]

Originally Posted by dieseljeep

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.

[miniman82]

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.

[snelson903]

that is a awesome set, look's all original to .

[MRX37]

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?

[Eric H]

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.

[miniman82]

Man, vk comes through again! I'll take it, how much you need to change vet shipping and whatnot to 20634?

Thanks Eric!

[Eric H]

P.M. sent.

[miniman82]

Thanks Eric, I love this place!

[miniman82]

Here's the new base on the CRT.

[Eric H]

Originally Posted by miniman82

Here's the new base on the CRT.

It looks great, glad it worked out well.

[BigDavesTV]

Tube socket replacement looks great, anxious to see pic's of the set running someday!

[miniman82]

Chassis resto got interrupted by some paid work, I had to repair a trio of CTC-15 clones for a guy up in NJ. Those are done now, but I took a minute to tool around with a Packard Bell roundie chassis someone gave me for free. Once that's fixed, which is just an AGC fault after recap, the Silvertone goes back on the bench to get completed.

[Steve D.]

From the Chicago Tribune April 15, 1956. Blowup from ad shows Sears Model 7140 in Mahogany.

-Steve D.

[miniman82]

Nice! PB chassis is done now, back to work on this thing!

[zenithfan1]