Our current projects - Videokarma.org TV - Video

***Eric H*** · #1 10-27-2002, 03:41 PM

Hi all,
I thought I'd start a thread where we can post pictures of what we're working on right now.

I'll start it off with some pictures of the cabinet for the Hoffman model 613 TV I'm working on.

The first one shows some veneer damage that goes clear through to the base wood.

I didn't want to reveneer the whole thing so I just sanded it and filled the gouges, it's pretty noticeable but hopefully will be less so after I apply the Lacquer top coat.

and here's the "Good" side.

Okay, your turn

Eric

Rob · #2 10-27-2002, 05:03 PM

Hey Eric,

That scratching on the side looks like a cave drawing of an alien skull!

Rob

Steve K · #3 10-27-2002, 06:06 PM

Two weeks ago today I bought this Motorola 8 inch electrostatic deflection set at the Rose Bowl fleamarket. The cabinet was in very poor condition and the vertical and horizontal sections were a mess (rewired, parts missing, etc.). I have it almost done. I am sending for the correct channel knob tomorrow. The picture on the screen looks better than the photo of it. I have yet to master taking a good picture of the screen of operating sets. This is only the second time I'm uploading pictures so I hope this works!

Steve K · #4 10-27-2002, 06:08 PM

Here's the screen picture. I don't know how to get two pictures in one post.

***Eric H*** · #5 10-27-2002, 10:23 PM

Hi Steve, that's a nice looking Motorola.
Coincidentally I won the bid on eBay for one just like it this afternoon.

Eric

Charlie · #6 10-28-2002, 01:03 AM

I took apart the Sylvania set and gave it a bath in the driveway. Was pretty nasty looking. I then found it to have a toasted power transformer. I found an another chassis like it in the attic and brought it home for a donor. About the time I checked out and swapped the transformer, I caught a cold and spent most of last week and this weekend hocking stuff up!

Haven't got much further than that. I still need to change some caps out. I feel much better this evening, and hope to be out in the garage soon. Here's a shot of the cleaned chassis and the donor.

Charlie · #7 10-30-2002, 03:52 PM

Got the Sylvania Halolite up and running late last night. After changing the power transformer, filters, and paper capacitors, I found it wasn't getting any high voltage to the crt. Found a .0022 cap in the horz width circuit that was shorted out. After replacing, the HV came back and made a pretty decent picture considering i haven't made any more adjustments since turning it on. Of course, the cap was in a really tight spot to get to. Seems the culprit is always in the worst possible place! Actually, I had skipped changing this one when replacing the rest because it was in such a tight spot. Live and learn! For now on, start with capacitors that are the hardest to get to!

In a few days, i'll run it for a several hours watching it to see if anything else goes out. Then I'll start on the cabinet.

Here's a scene from today's episode of General Hospital.

***Eric H*** · #8 10-31-2002, 12:00 AM

Congrats on the Sylvania Charlie! That's a great looking picture!

I have been working on my 49 Hoffman tonight, it's starting to come to life. Here's a picture of it running a test CRT.
The tuner drum is not installed here nor most of the I.F. tubes and it's also missing a 50 watt power resistor but it has High Voltage and some sweep.

***Eric H*** · #9 11-02-2002, 01:24 AM

Further update on the Hoffman. I'm nearly done recapping it.
It only had about an inch of vertical sweep which turned out to be an open oscillator transformer, I swapped it out with a used one from a junked RCA KCS47 chassis and now it works.

Here's a picture of it with the 12LP4 installed.

Even though I haven't recapped that section the radio is working too! at least on FM.

Charlie · #10 11-23-2002, 08:53 PM

This is my current project, although I haven't touched it in two days due to yardwork and other errands needing attention. It is a Zenith model 5758, with the 24MC32 chassis. It was a set I pulled from the TV shop several weeks ago. This set looks extremely identical to the 5040/29JC20 I am in search of. As far as the looks go, the only differences are the legs are placed inward under the cabinet instead right on the corners, and this one has the UHF tuner. The 5040 was only VHF.

So far, I've only pulled the chassis and gave it a bath in the driveway. It was hurtin' for one! Looking the chassis over, I couldn't visually find anything that failed. Maybe that means the picture tube is no good.

Perhaps not, but that thought crossed my mind. I don't have a crt tester, so I will have to find out the hard way... get the chassis up and going and then plug it in!

The cabinet is in semi-decent shape. The top is hurting pretty bad, and I will probably have to cover it with a new piece of veneer. The rest of it is ok, but once the top is fixed, I'll refinish the whole thing.

I'm not sure how far I will get with this... I return to the ship in a week and I will have other things to do that will take up my time. Hopefully, I'll get far enough to completely power it with the CRT plugged in and have some sort of picture. The rest of it will have to wait till I return from the ship again.

Charlie · #11 11-23-2002, 08:57 PM

The chassis after a bath...

***Eric H*** · #12 11-23-2002, 11:49 PM

Those Zenith chassis sure are nice looking, not at all like the crappy PC board RCA & most everyone else used.

Are those Compactron sockets I see?

Eric

Charlie · #13 11-24-2002, 04:36 PM

Eric,

Yes, this has a few Compactrons in it. I like this type of chassis for the terminal strips used. The components underneath have plenty of room, and because of the style of strips, the components seem to be layed out nicely, and easier to remove/replace. Since the terminals all stick thru the top of the chassis, it is usually easier taking readings from various places.

My big Curtis Mathes chassis was the same way, and it was extremely easy to replace parts under the chassis and do a nice neat looking job.

Steve K · #14 11-25-2002, 05:14 PM

I'm in Wisconsin this week for Thanksgiving and thought that I'd recap my projection set. RCA must have received a great deal on war surplus capacitors as this set must have a thousand of them. Anyway I got it working. I'll post a picture of a screen shot but it will look a lot worse than it really is. The picture is watchable but it needs to be in a dark room. The set does have a NOS projection tube in it.

Steve K

Steve K · #15 11-25-2002, 05:15 PM

Here's a picture of the picture: