Well looks like I have another headache on my plate, guess this one and miss america will look good sitting together in the time out corner. I was hoping to get this guy powered up and see if I get a picture on the tube before I got all the caps ordered. I went to take it apart to clean the dust out before the cooking on the variac began. When I see 2 unknown umbilical cords, for a remote? Well under the chassis there is a tube that shouldn't be along with a whole mouse nest of wires and caps that should be. What in tv goddess name has been done? I didn't think I would need the schematics but I guess I will now. So much for getting him going tonight

I love the case style on this set!
Looks like someone had snipped some caps trying to find some problems.
OH, OH......
Should be a very nice set when finnished.
Bill Cahill

A couple of possibilities come to mind for the modifications including extra tube, and cables leading out of the chassis.

One would be an external color wheel setup which became popular for a very short time. The other would be to connect an external projection unit that required multiple leads from the TV chassis.

That is what I was thinking, that all this stuff was for some sort of accessory that was popular in that time. I was given a link that someone had found on one that was completely restored. So I should be able to compare my set to the photo's of that set and figure out what wires go where and what was added and get it back to the original setup. Well let me warm up the soldering iron and get the snipers out.

http://brogers.addr.com/Web/TV/Vintage_tv.htm

Any of the abve could explain the tube or it could be simply a video input amplifier or inverter.

With a proper schematic it should be easy to clean it up.

Jim

How many pins are in those external plugs?

I wonder if it was used with a Norelco Duo View at one time.
I don't think it would need the extra tube for that though.

heres a photo of the pins and a photo of the tube and cover removed the tube is a 12BH7. If anyone has a schematic they could share it would be great, also need a knob too. And if any happens to have a plastic cover that would be awesome.

Yep, I'm almost positive your Admiral was hooked up to a Duo View at some point, it uses a 12 pin and a 6 pin connector.

Yours has been unhooked and bypassed, I bet a study of the wiring diagram would confirm it.

If you decide to remove those connectors I'd be interested in getting them from you, I'll need them if I ever get the DV running!



This Tele-Tone is not connected the the DV, just sitting on top of it.

What is a Duo View? I will be cutting them out but now I am curious, what a Duo View is. I doubt I could ever find one, maybe I will need to trade tvs with you

The Duo Vue (I misspelled it previously) is a projector attachment that worked in conjunction with a regular TV set.

See here: (Not mine) http://www.myvintagetv.com/norelco_pa2.htm

Oh that is cool, now I want one but don't have the space. I guess I will just convert mine back to a regular tv or should I leave for later on incase I stumble across one

That's the cool thing about the DV, it doubles as a TV stand so it doesn't take up any space.

They aren't too easy to find, I'd just remove the plugs from your set, and I'm not just saying that because I need them, nooo, not me.

Jay,

I just checked my Wallace's Telaids Admiral TV book and your model 20X136 is listed as having a 20Y1 chassis. My book has that page, 27. I can get it copied one day this week if you want. I can't just scan it because the pages are 11"X17". But when they are scanned and printed, they come out very clear. Just let me know here and via PM and I will be glad to do it for you. ...

The knobs on your Duo Vue look exactly like the knobs on the '49 to '50 Sylvania TVs. Is there any chance that it was made by Colonial Radio Corp?

John

I acquired this set from coolijay some time back and in process of restoration.
I tested the crt (12LP4) with a B&K 465. It tested good, on the low side but no shorts..
I plan on removing the duo view plugs and circuits. I've traced the jumpered
wires on the plugs and reconnect the original wires together.
I'm not sure if the tube socket and wires connected to the chassis are hooked in series
like the sockets, have to check the schematic.
I am staring on the electrolytics in theL.V. power supply.
Bill

Glad to hear you are starting on the restoration of the tv. I am also glad the tube tested good. Hopefully you can get it all figured out and get a nice picture out of it. Would love to see it when its up and running!

This is a nice set. I have the table model 20X136N

http://bertinot.com/tv/20x136n.htm

Thanks Jason,
I'm sure U can get it figured out eventually. I am trying to get the can cap removed so I can restuff it., no room for
replacements underneath in this area.
Bill.

Duo View wiring has been removed and caps are being replaced.
The larger cap in pic was connected to one leg of the deflection yoke and the other end was connected to the width adjustment. Both Riders and Sams schematics indicate it is a .5mfd cap. I cannot read what the value is without removing it. (riveted ans soldered to chassis). The loose one next to it is a .5 mfd 600v cap. removed from chassis. I suspect the value listed in schematics is wrong, due to the large size and it is clamped down.
Is this actually a .5 mfd cap?
Thanks,
Bill

Yes, it's C70 in the Sams Photofact - 0.5 mfd @ 200 volts.

It's also the only 0.5 mfd cap in the set. I really don't think that loose cap is 0.5 @ 600 volts. That would be a huge paper cap. Perhaps it's 0.05 ?
The one to the right of it (C69) should be 0.035 mfd @ 600 volts. I use 0.033 mfd @ 630v.