Raytheon Model C-1602 16" porthole tv Now with pictures!

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Re: Raytheon Model C-1602 16" porthole tv Now with pictures!

Post by cwmoser on Fri Sep 21, 2012 8:01 am

Bill Cahill wrote:OH, my God is yours different!
Tube line up is different, looks like you have one less tube, and, tubes are moved around. Plus, it looks like it's different even from the schematic, as well. It's certainly not like mine!
I'm absolutely shocked!!
...
How did your cabinet come out? MIne needs mucho work.

So its looking like the Raytheons have a lot of variation. You might want to create a separate
thread getting other Raytheon collectors to chime in.
I've pondered about which manufacturers had the most competent circuit designers and
packaging engineers. As far as how my Raytheon chassis is laid out, I think it is
much better done than any of my other vintage TVs.

My cabinet was structurally sound. I did stain it and use Howards Refinisher on it, and then
sprayed several coats of lacquer. This TV was my first attempt at spraying lacquer all over it.
I like to keep the wear marks so it does look like a real antique.
I totally cleaned the cabinet and stained the inside with Ebony stain.
I repainted the back metal CRT yoke protector and the bezels in the front.

These old Raytheons with the way the CRT juts out are really unique looking TVs.

Carl

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Re: Raytheon Model C-1602 16" porthole tv Now with pictures!

Post by cwmoser on Fri Sep 21, 2012 8:05 am

Here is someone else's restoration and unlike mine, it
has a tube under the chassis:


Carl

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Re: Raytheon Model C-1602 16" porthole tv Now with pictures!

Post by cwmoser on Fri Sep 21, 2012 8:09 am

This Restoration thread states:
"After changing capacitors, the set played, but poorly. I then found many resistors that were tired and needed replacing."

http://www.ct-tv.50megs.com/photo4_1.html

I think I'll pull my chassis and check all the resistors.

Carl

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Re: Raytheon Model C-1602 16" porthole tv Now with pictures!

Post by Bill Cahill on Fri Sep 21, 2012 12:15 pm

First, I don't agree on layout, or, quality. I've seen better designs, and, layout.
Dumont had the best.
Admral had pretty good.
I got my vertical back, but, now, reception has died. I'm getting a blank raster with low sound.
Phooey!
For a bried while this morning, I got vertical to stand still, and, barely had good lock on sync.
Then, it all went downhill fast!
Now, I only get a raster.
Bill Cahill

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Re: Raytheon Model C-1602 16" porthole tv Now with pictures!

Post by cwmoser on Fri Sep 21, 2012 1:27 pm

Bill Cahill wrote:First, I don't agree on layout, or, quality. I've seen better designs, and, layout.
Dumont had the best.
Admral had pretty good.

Never restored an Admiral or Dumont - just Emerson 639, GE 805, two Zenith Portholes,
and a Philco Projection TV and the Raytheon was hands down the easiest. Did not like
the little daughter boards in that GE805. The Philco Projection TV did not have any
recap difficulties other than it took a lot of endurance to replace all 70+ of them:-)

Lots of room to work under the chassis in the Raytheon.
Have to find a Dumont or Admiral as my next restoration project.

Carl


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Re: Raytheon Model C-1602 16" porthole tv Now with pictures!

Post by Bill Cahill on Fri Sep 21, 2012 3:48 pm

I need a favor. Can you run yours for about 10-15 min. shut it off, unplug, remove hv cage, carefully discharge hv , and, feel your flyback? Let me know if the core, and, hv donut are warm, and, if so, how much, please.
I'm getting that sickenning feeling that this set wasn't worth fooling with.
I got vertical stable, though short.
Horiz. is not quite stable. I think I have disc. problems. Sync is now stable.

However, still, after a few min. run, picture gets darker, and, things start fading out.
I lose raster, and, nearly all the sound.
Upon removing my cage, I found both the hv donut, and, the core of the flyback to be warm to the touch.
Bill Cahill

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Re: Raytheon Model C-1602 16" porthole tv Now with pictures!

Post by Bill Cahill on Sat Sep 22, 2012 12:08 pm

Help!!!!!!!
Well, my luck ran out.
I re replaced the two electroytics.
Started trying set. For a brief moment I saw a picture come on. I had full vertical height, and, width was nearly full. I had variac set at almost 90 volts.
Suddenly, I heard a Pop, and, raster went out. Set started making noises I didn't like.
I shut it down, and, examined parts. Couldn't find anything.
I slowly brought variac back up.
Iwas getting very low B+ at that point.
I heard another pop, and, sizzling. I quickly turned it off.
I smelled around, and, didn't like odor.
I put chassis back on its' bottom, and, pulled hv cage. Instantly I was rewarded with some smoke, and, the acrid smell of burnt transformer.
The smoke stopped, and, I smelled around. The flyback is toast.
It is history!
Now, my entire house smells like a burned transformer.
Flyback is cooked!
Oh, 589^%T##%#T%T$#!!!

Anybody got a good flyback for this set?
Until then, I've pulled all tubes out.
It's a special transformer.
Bill Cahill

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Re: Raytheon Model C-1602 16" porthole tv Now with pictures!

Post by cwmoser on Sat Sep 22, 2012 2:30 pm


Sorry to hear about that.
Check with Playthings of the Past - they might have
a Flyback transformer that will work.

Carl

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Re: Raytheon Model C-1602 16" porthole tv Now with pictures!

Post by Bill Cahill on Sat Sep 22, 2012 2:39 pm

Just looked. They carry nothing tv.
House still smells awful!
I think it was starting on fire when I last shut it down.
Bill Cahill

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Re: Raytheon Model C-1602 16" porthole tv Now with pictures!

Post by Bill Cahill on Sat Sep 22, 2012 2:40 pm

I think I give up on this one. I know when I'm licked.

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Re: Raytheon Model C-1602 16" porthole tv Now with pictures!

Post by cwmoser on Sat Sep 22, 2012 2:55 pm

You are right - it is a special Flyback.
Sams does not provide a cross reference:


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Re: Raytheon Model C-1602 16" porthole tv Now with pictures!

Post by cwmoser on Sat Sep 22, 2012 2:56 pm


I've purchased Flybacks from Playthings of the Past - look under Radio Transformers.

There might be one that will work - might take some research figuring which one though.

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Re: Raytheon Model C-1602 16" porthole tv Now with pictures!

Post by Bill Cahill on Sat Sep 22, 2012 3:44 pm

This is a special flyback. First, set has keyed agc, and, keyed afc for horizontal coming off flyback.
Second, half of the hv doubler circuit is mounted right on the flyback.
If it weren't for the keying, I'd look for something.
But, according to sam's the resistance on the hv donut is shockingly low.
I've never seen a flyback with resistances that low.
The one in my set is apparently what went wrong. It's burned open.
House really smells so bad I may have to throw out the flyback.
I think it was starting on fire when I shut it down.
Bill Cahill

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Re: Raytheon Model C-1602 16" porthole tv Now with pictures!

Post by Bill Cahill on Sat Sep 22, 2012 3:56 pm

I found the list. They have very little that old, and, none of it will work in this set. Thanks anyway.
Bill Cahill

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Re: Raytheon Model C-1602 16" porthole tv Now with pictures!

Post by Bill Cahill on Fri Jan 11, 2013 12:21 am

I was just getting ready to strip the chassis. I found at least part of the original problm on the flyback.

One of the winding wires going to a plate connection, I think horizontal output, was too close to some other winding wires, and, apparently started arcing through the insulation.
Most of the insulation is burned off that wire, and, winding wire is charred.
The flybak board has a burned spot, and, the wire it was arcing against is burned in two. It looks like it may have been the agc winding. Also, two of the three series resistors in hv circuit are badly burned. To the point I'm convinced they were on fire.
This was a major short.
Apparently that was the main reason for the breakdown.
It's too late, since I've already tossed the cabinet, but, it's just interesting. If I still had the cabinet, I'd be tempted to do repairs, and, try it just to see what it would do.
Anyone want to make a guess?
I'll be stripping it tommorrow.
Bill Cahill

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Re: Raytheon Model C-1602 16" porthole tv Now with pictures!

Post by cwmoser on Fri Jan 11, 2013 8:10 am

Good invesigative work. Too bad you dumped the chassis.
I don't see many of these Raytheon portholes and it might be
rare. There was one on Ebay a few months ago that had been
repurposed as a god forbid fish tank.

What do you think your chances are of finding a good cabinet?

Carl

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Re: Raytheon Model C-1602 16" porthole tv Now with pictures!

Post by Bill Cahill on Fri Jan 11, 2013 10:51 am

I don't think they are good at all. The chassis isn't completely stripped, yet. But, without a cabinet...............
I agree they are rare. My other concerns are what other dammage had been done? I know the winding wire where the insulator was, and, had burned off, is badly charred. The donut still looks o.k., but, what about inside? The winding it had shorted to, the wire burned in half. How badly dammaged is the winding itself? What further dammage did it do to the tv? That winding is either for the afc, or, agc. Considering that I was also hearing a crackling, and, popping in the speaker, I suspect agc. So, what dammage was done to that circuit? Further, is the flyback ruinned from this? I do know it also burned up two of the three resistors in the plate circuit of hv rectifiers.......
Now, my question? Is it worth it to take a chance to do some repairs, re tube set, replace cut wires, and, try it again? If it did work, what are the chances of finding a cabinet for it?
I'm not sure, yet, how much wire cutting I've done, maybe not alot. I know I cut second anode lead off, and, power cord as well..
I'll look at flyback, and, chassis today to further determine what I cut, and, see about further circuit dammage.
Would any of you be interested in this chassis?
I just don't know what to do.
Bill Cahill

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Re: Raytheon Model C-1602 16" porthole tv Now with pictures!

Post by Bill Cahill on Fri Jan 11, 2013 5:19 pm

Well, after talking, and, thinking, it's official. Blow taps for Raytheon.
It's stripped, history, toast, outa here!!!!!!!
I kept manny parts, including dammaged flyback, and, alot of wire.
Much of it can, and, will be used over.
That's the way it goes, I guess.
I'm cleanning off bench, then, on to next project.Hmmmmmmmmmmm I'd sort of like to get back on to a very old project. My 1949 16" table model RCA. Modell 9T270.

Bill Cahill

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