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#1
10-12-2010, 07:31 PM
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New Project: Westinghouse H-619T12U
This is a local set I picked up off eBay for $50.
It biggest asset is the rebuilt CRT that checks like new. It's missing some knobs and the back, also the cabinet is coming unglued in spots but is in good condition overall, no warpage or rot, just bad glue which is easily fixed. The chassis is in really good condition, just a bit dirty but complete and untouched as far as I can see, the Flyback looks good. I powered it up with a dim bulb and got a hum, also the main filter can started getting warm, it has also been leaking electrolyte. I disconnected the B+ wires from it and jumped in a good cap and got static from the speaker but no HV, the Oscillator is no doubt inop due to bad paper caps. It's kind of unusual that it uses two 1X2 HV rectifiers, I don't know if it's a doubler circuit because I don't have the schematic for it. I like the tall skinny look of this set. The underside of the chassis seems a little bare, WestingMuntz? Another curiosity and a Philco connection, the chassis corners are set up to use rubber isolation mounts, same as Philco did. I know Phil has a Westinghouse that's 100% Philco on the inside so I wonder if Philco built this chassis for them also? Last edited by Eric H; 10-12-2010 at 07:38 PM. 
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#3
10-12-2010, 08:11 PM
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Hey, that's a great find! Looks like it might be a mahogany cabinet like the one on my Zenith which is another one of those tall, skinny sets. The rebuilt CRT alone is well worth the $50, although I'm not good at estimating the size from photographs. Is it a 16''?
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#4
10-12-2010, 08:36 PM
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Quote:
 Looks pretty clean under there too.John
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#5
10-12-2010, 09:48 PM
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Nice set! Very similar to a Westinghouse that I got a few years ago at our local club auction. I bought it in working condition. I have not even had it out of the cabinet. It works and when I look under the chassis through the cutout in the cabinet, I can see some caps replaced. And one of the electrolytic cans has a seam where it has been cut open. It does work but the horizontal goes off frequency after about 30 min. Guess I should really finsish the restoration?
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#6
10-12-2010, 09:49 PM
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#7
10-13-2010, 12:17 AM
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I did enough recapping to get the Horiz Oscillator running, the biggest problem with that was an open Cathode resistor on the Horiz Output tube. It's supposed to be something like 80 ohms but it was measuring infinity, I jumped it with a 68 Ohm resistor and it started running.
The HV is still too low to make it to the CRT, probably because the filters are bad but I'm satisfied for tonight. I've never seen a set that used 6W4's for the low voltage rectifiers but this one does, two of them. I have a Brochure <--(Download it) for the 1949 Westinghouse lineup, this model was their bottom of the line economy model. My favorite line from the Brochure "It has adequate manual controls" nothing great, just "Adequate" 
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#8
10-13-2010, 12:28 AM
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Nice score
 The brochure mentions a '12 1/2" black glass tube'. Is it a 12LP4 or something more exotic ?
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#9
10-13-2010, 12:36 AM
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It has a replacement tube, I suspect it's just a tinted faceplate same as a 10BP4A, maybe a 12LP4A?
I haven't really studied this one to see if it's tinted or not.
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#10
10-14-2010, 06:30 PM
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I've replaced all but six of the old caps now, there are about 31 paper caps in this chassis, which is about 25 fewer than the Philco 48-2500 I just finished recapping.
Three of the caps on the Flyback were .001@6000v those were used in the doubler circuit, I had those in stock because I've been ordering a few HV caps each time I send an order to Justradios. One of the sand resistors had been jumped already and another one died while I was testing the set, the last one will need replaced soon too since it has the green corrosion on the leads that these all seem to suffer from. I've ordered the eight electrolytics I need to restuff the cans, I also ordered a new 6AU5 for the horiz output, this one tests OK but the getter is mostly white with only a sliver of black left! Even with most of the Electros jumped I still had low HV, about 2k was getting to the CRT and I could see a faint line when the set was switched off. I think a poor 6AU5 combined with the load on the B+ caused by the leaky Electros is keeping it down. While I'm waiting for the caps to arrive I'll spend some time cleaning the chassis and fixing the cabinet.
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#11
10-16-2010, 02:22 AM
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I finally got a raster out of this set!
I finished replacing all the paper caps last night but still not enough high voltage to light the screen. The new 6AU5 I bought showed up today, I installed it and still had low HV at the CRT, it seemed OK at the tops of the 1X2 rectifiers though so I did a little more poking around and found these three 510,000 ohm resistors that were on the Flyback board. (2nd picture) They feed the HV from one of the 1X2's and are supposed to be about a meg and a half total, these wouldn't read a thing on the 20 meg scale of the meter. They were wrapped in heat shrink, cutting it off showed they were in pretty bad shape with lots of corrosion. I temporarily rigged up a new block of resistors using some 560K 1/2 watt resistors from my Harbor Freight resistor kit, they won't hold up for long but good enough to prove the problem. Now the set has no video reaching the screen, no sound either other than some slight hiss from the speaker, I'll wait till I get all the Lytics changed before troubleshooting it, too many Alligator clips and loose capacitors hanging off the chassis to tackle it now.
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#12
10-16-2010, 09:50 AM
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Very encouraging indeed! The CRT appears to have a good amount of life left in it. So now you have proven that the major components are working and good. Just a little more to go and you can sit back and watch that old B/W TV show, whatever it may be.
Congratulations! Now back to work... 
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#13
10-22-2010, 02:51 AM
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It's aliiive!
I restuffed the Filter cans, all two of them, this is a pretty cheap set. It has fewer Elecrtolytics than any other set I've worked on lately. The vertical hold adjustment is pretty critical, though it will stay put once you get it locked, possibly a resistor out of spec somewhere, quite a few of those in this set. It looks pretty good on the 5" test tube, I'll have to put the regular 12" tube in and see if any flaws show up. The sound is clear though not terribly loud, I don't know if it's just characteristic of this set or if there's still a problem somewhere. It uses an electromagnetic speaker, kind of odd for so late a model.
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#14
10-22-2010, 02:13 PM
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In the Beaver picture, I notice that you seem to be working somewhere near the kitchen.
I could never get away with that in my house. The kitchen is off limits for TV service... Unless it is something being repaired to USE in the kitchen!! Looking GREAT!! Bruce
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#15
10-22-2010, 06:58 PM
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 And I always go to Burger King for dinner. That TV looking good! 
__________________
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