By hybrid, I meant a combination of solid state and tubes. Looking at your latest photos and guessing the age, I suppose it's basically a tube TV. I associate this level of modular design -- everything divided into replaceable chunks -- with newer solid state stuff, but what do I know? It would be interesting to see how they divvied everything up into those boxes, anyhow.

Phil Nelson

I think this set dates to 1950-51 with a 17BP4 CRT. It's in SAMS folder 144, so where does that put it?

I'd rather think the modular design was the outcome of SC doing war contract work, but that's just a guess. Even my portable P65 from 1959 is modular, but not the extent of this set. On this set even the power transformer, choke and rectifier are built on one plug in module.

Here's what the power supply module looks like removed from the chassis. Suspicious how those two red transformer wires have been snipped from their respective connector terminals.

I Just noticed I'm about to run out of attachment space. 18.22M out of 20M available :no:

Maybe they weren't used in this model ? Try one the free photo hosting services like Flickr or Photobucket.

Not too much recapping to do under the main chassis. :D

http://i452.photobucket.com/albums/q...g?t=1341878715

I tried reducing the image size on Photobucket to 640 x 480, yet I'm still getting too big of picture here. Any idea's what am I doing wrong?

Trying again.

http://i452.photobucket.com/albums/q...del2500010.jpg

http://i452.photobucket.com/albums/q...del2500011.jpg

Seems to have worked but my first photobucket linked picture seems to be stuck at full size. :scratch2:

Try to upload the new size picture to Photobucket and then change the link in your post to the new file name...

Tried it, still comes up super sized. It's like the forum is still storing and bringing up the original img file.

Here's the photobucket link to the picture. http://i452.photobucket.com/albums/q...del2500012.jpg

Edit- wow even the link comes up the wrong size, yet when I view the album image size on photobucket it's 640 x 479. Even deleting the picture from my album did not make it go away. :screwy:

Finally got it. Had to cut and past the image location instead of using the Photo IMG code link-to feature. No idea how that works.

Well, that's sure a different design for the early 1950s. Easy to service, but expensive to manufacture. And from a customer's perspective, this TV wouldn't work any better than one built the old-fashioned way.

Phil Nelson

I wonder if all those plug-ins wouldn't be a source of intermittents. Just think of oxidized tube pins and tube sockets, multiplied.

That's exactly how it works with almost any forum that allows pictures in the thread. But back to the original, very interesting set!

Finally had some time to do a little above chassis housekeeping. Most of the yuck came off without too much trouble. Used a combination of water, denatured alcohol and Windex. Didn't realize it at first but the tuner is also a plug in module. All the sub-chassis are aluminum, except for the IF chassis which is steel with cad plating. I was going to rob the CRT from this set to use in another TV- but now I've decided to recap this one to see how well it performs. It's a very interesting set and I don't think I can part it out. However I may borrow the CRT eventually.

http://i452.photobucket.com/albums/q...g?t=1342822026

http://i452.photobucket.com/albums/q...del2500009.jpg

http://i452.photobucket.com/albums/q...g?t=1342821838

http://i452.photobucket.com/albums/q...del2500011.jpg

Am I correct in reading the CRT date code from 1953? I assumed all the Hytron tubes were original to this set. 53 seems a couple years late according to the dating on the Sams folder for this chassis. :scratch2: