sylvania color set (23v rectangle)

[DaveWM]

buddy of mine was cleaning out an old estate. had a nearly mint sylvania 23v rectangle set (not a clone). He did not have space for it so gave to me. I checked it out and it had a nearly dead R and B CRT the G was fine. Anyway I fired it up and was able to get a good raster on green, and if I turned the G all the way down and the R and B all the way up I could see it was demodulating the color signals.

I put it aside figured I would part it out at some point just to make space, since I did not want to use one of my good CRT's on it as I was saving them for a zenith I have.

Yesterday I say a CL add for an old TV it looked like a Maggie rectangle with the tambor doors.

5$ later I have it in my truck (not going to test anything for 5$). Got it home and pulled the chassis and CRT. The cab was a mess faux finish plastic chic, and messed up at that, plus the particle board was coming apart. the chassis is not a clone. I may someday feel the need to put it on a jig and try it out.

Now the good part, while it does have a bit of a green halo, it test excellent on the CR-70 like new really, so I guess I will now have to swap it in for that beat CRT on the sylvania and get it going. I will post up some pics and make a video of it later.

[DaveWM]

here is the CL pic

[Electronic M]

Originally Posted by DaveWM

here is the CL pic

It does not look half bad in that pic, and I've seen one of those cabinets in mint shape in person, granted the set I saw had been gutted and used as a cabinet for the set that replaced it.

[DaveWM]

here is a pic of the donor chassis, will be posting up a better pic of the sylvania soon.

https://www.youtube.com/watch?v=oTnhMI3smjk

[DaveWM]

and here is the sylvania that the CRT is going into. better lighting this time and some shots with the back off.

https://www.youtube.com/watch?v=_nA3...ature=youtu.be

[DaveWM]

had a minor set back, after pulling the chassis and replacing ONE cap a .0056 1600v bumble bee, I decided to try it out again just to be sure everything still worked and the collapsing raster was fixed. I wanted to do this before the CRT swap since the chassis is extremely easy to pull and install.

well I had a LOT of noise in the signal, huge RF noise it seemed. this was both video and audio. I noticed that when I unplugged the set the audio would clean up perfectly for a second as the caps discharged the B+.

I had a hunch it was in the HV area (the only place that can make that much noise) so I removed the Horz out tube. bingo perfect sound. I used my prob and started messing with the HV wiring and when I touched the shunt tube cap the noise went away. I pulled the shunt tube cap and the wire (thin teflon looking thing) pullled right out of the cap. A few minutes later and I had the wire reattached and the issue was gone. I ma guessing it was arcing inside the cap contained enough that I could not locate it, but arcing all the same creating the RF noise.

So with the vert rock solid now (the 1600v BB would not open the eye even at 150v) I feel comfortable with pulling the CRT and moving on.

http://www.youtube.com/watch?v=PQX9L...re=c4-overview

[lnx64]

Oh man, and you're in Orlando too.

Um, any chance I can get to see this TV live? :P

[DaveWM]

the maggie is history, but I will get the sylvania going with the maggie CRT.

[lnx64]

That's what I was referring too, the Sylvania.

[DaveWM]

sure you can stop by and see it when done.

[lnx64]

Awesome, thanks! I love the console TV's, especially that era.

[DaveWM]

here is a brief video showing the checkout of the donor CRT and the set its going into.

http://www.youtube.com/watch?v=v9cGcDqKghU

That CRT did not require any of the "wake up" time or high heater voltage. Frankly I was shocked by how well it tested, I have some NOS rebuilds and it test every bit as well as they do.

[lnx64]

The CRT will fit alright, right?

[DaveWM]

yes the sylvania has a 25XP22 as well.

[lnx64]

Ahh ok, perfect.