My 11 year old son's Admiral 30A1 restoration project

[N2IXK]

I would look for an adjustable wirewound resistor of ~6300 ohms, as those are different taps for width adjustment. Then you can set the tap as needed.

[UberVacTuber]

That same resistor died in my 30A1 as well. While I would get a picture, it was very wide, and the width control had no effect. I bought a replacement that was equal to the original tap (I had to buy 2 and put them in series as I couldn't get the exact value I needed in one). Once replaced, the raster was a much better size and shape, plus the width control worked again.

Look closely at the dimensions when ordering a new one. In my case the disclaimer "The actual part may differ from the picture" bit me. I thought I'd be able to simply stack the resistors on top of each oth on the original mounting screw, but both units were tall, too tall to do this with. I had to fabricate a holder to mount them both side-by-side in the cage. D'oh!

[bandersen]

The idea was you used the lug that produced the best width. Leave the other lugs unused.

I used an Ohmite 7.5K 50W and a 20K in parallel https://flic.kr/p/f3yNXS
They are on sale at Allied and mount nicely with the original hardware.
http://www.alliedelec.com/search/pro...x?SKU=70024373

[Tom S]

Soon as your son masters this set get him a Color set. He sounds like he'd take to it like a duck to water. I started in Tv at 12, was in a shop at 13. He'll have to hang with us old guys. I had alot of help from every tech in my town.

[Kamakiri]

Who knows, maybe I can convince him to go to ETF with me in May

[kramden66]

i'd go if i was closer - good luck to Nick on this

mike

[Kamakiri]

Resistor is in, so back to where we were.....HV, raster, sound, but no vertical sweep.

Considering that the set's been recapped, new VOT, good tubes, tested and replaced resistors.....my next thought is the yoke. Tomorrow we're gonna break out the yoke tester and give it a whirl. Any other thoughts or ideas are appreciated

[kramden66]

check the vert out and vert osc voltages on the pins ?
did you check the vert osc transformer ?
you tried alternate vertical tubes ?
the sockets on the vert tubes are tight and clean ?
vert size and vert lin pots are ok ?
checking the yoke wont hurt.
mike

[kramden66]

whatever happened with this set ? and he dumont from another thread ?
mike

[Kamakiri]

This set's waiting for me to line up a yoke for it. I was going to borrow the yoke from my 8TS30 that's on the bench almost done, but my son's too interested in playing PS3 this weekend to work on it

The Dumont, after all that work and finding the unobtanium dead flyback, I decided I was done. Done, over, had it, no more, disgusted, done, over with. My friend Al needs a lot of parts for his RA-108 and there's plenty of spare parts for his doghouse, so it got parted out down to every last screw and nut, and the parts are going to him. I re-purposed the cabinet masterfully into a large stand for my Zenith roundie color by sectioning out the center where the screen mask was, then reattaching the top. For some reason I always hated the Sputnik legs, and the way it's sitting now atop a perfectly sized 2 foot tall pedestal, I'm in absolute love with it. Saved the sputnik legs, of course....

Sometimes....ya just gotta.

[BigDavesTV]

"I re-purposed the cabinet masterfully into a large stand for my Zenith roundie color by sectioning out the center where the screen mask was, then reattaching the top. For some reason I always hated the Sputnik legs, and the way it's sitting now atop a perfectly sized 2 foot tall pedestal, I'm in absolute love with it. Saved the sputnik legs, of course....

Sometimes....ya just gotta."

Hi Tim, "sometimes...'ya just gotta!" True! Me (and I'm sure others), would really like to see pictures of this when you get around to it! Hope to see you and many others at ETF the first of May, I'm looking forward to it...should be better weather by then!

[Kamakiri]

Okay, I know I'll be drawn and quartered for this, but here's what happened to the Dumont....

I finished up the woodwork at the top of the speaker grille after this shot was taken. I spent a half hour measuring and 5 minutes cutting. It's the exact perfect size for the metal color cabinet, and much more sturdy than the legs.

All's not lost though, as it was a $20 set that will bring life to 2 others, and I managed to repurpose the cabinet to be something NOT a fishtank. Not one piece of the cabinet is going to waste either, as I've saved every piece that wasn't used, for future projects.

Guess that's not *too* bad, right? And I have to say that this stand made me fall in love with the Zenith.....

[NoPegs]

Henceforth Tim shall be known as: "The Dumont Barber-Surgeon."



Shave-and-a-haircut... No-Legs!


Overall I'd say that you haven't outright committed any atrocities, but I'm sure there are some who will resent you for your actions.

[Electronic M]

I always liked the 50's and 60's sets with legs better than the overly formal speaker base sets...

[kramden66]

Tim
so you used a phaser on it ?
you should run sound from the zenith to the speaker below , you'll get more full sound , a 60's zenith with the look of a 50's color set , nice.
mike