If you need a TV for a tube swap...

[solo742]

Still looking for the TV

Ok, did some hunting today, found a few "close but no cigar" candidates.

Learned a few things I wanted to pass along:

When you a checking out TV's through the vents, make sure the neck diameter is the larger 2-2.5 inches rather thatn the small neck (this will be your first disqualifier)

Next, before you get your hopes up (as I did today) make sure the TV is not 20" if you are looking for a 19"

Also, check the yoke and make sure it is not affixed/permanent so you cannot remove it from the tube.

As a side note....If the tube in the ever elusive "signature 2000" is a sharp A48JKL60X, does it follow that most likely sharp 19" TV's would have a better chance of having that tube? Is there any way to find out which other TV's have that tube?

Thanks,

Jim
[email protected]

 

[orion3311]

I'm so proud

i found that daewoo have nice thick-neck tubes, as well as Samsungs.

If anyone comes across a donor tv pm me make,
model, and yoke readings if you can. Im keeping a database.

Also..keep in mind some newer monitors like wells k7203 use a thin neck tube!

 

[Riptor]

Save the old yokes before tossing those burned tubes. I have found that even if the new tubes yoke is pretty close in tolerance it can still be hard to get the picture perfect. Swap in the original yoke and those issues are gone.
Yeah I hear you on the 20" tube! I pulled one of these once not realizing it was a 20. I ended up modifying the frame to make it fit. Yeah it worked but it was more work involved than it was worth.

 

[mhanlen1]

Everyone knows you can determine tube size by the model # right? It's usually the 1st set of #'s in the model #. Everyone probably knows, but I thought I'd throw it out there.

 

[Riptor]

Everyone knows you can determine tube size by the model # right? It's usually the 1st set of #'s in the model #. Everyone probably knows, but I thought I'd throw it out there.

Not me but I do now. Thats some good info to know. The local transfer station gets piles of tvs and computers that are free to a good home. Im going to start picking this stuff up while its still around.

 

[Robran68]

everyone knows you can determine tube size by the model # right? It's usually the 1st set of #'s in the model #. Everyone probably knows, but i thought i'd throw it out there.

51 = 20 inches CRT
48 = 19 inches CRT
63 = 25 inches TV
66 = 26 inches TV
68 = 27 inches TV
34 = 13 inches TV
36 = 14 inches TV

 

[Fudd]

Ok, did some hunting today, found a few "close but no cigar" candidates.

Learned a few things I wanted to pass along:

When you a checking out TV's through the vents, make sure the neck diameter is the larger 2-2.5 inches rather thatn the small neck (this will be your first disqualifier)

Next, before you get your hopes up (as I did today) make sure the TV is not 20" if you are looking for a 19"

Also, check the yoke and make sure it is not affixed/permanent so you cannot remove it from the tube.

As a side note....If the tube in the ever elusive "signature 2000" is a sharp A48JKL60X, does it follow that most likely sharp 19" TV's would have a better chance of having that tube? Is there any way to find out which other TV's have that tube?

Thanks,

Jim
[email protected]

Same thing happened to me. Told the people to verify its a 19" multiple times, get it home and its a 20"...junk. Next i find a 19" but its the slim neck..i am now 1 for 3 on my tube swaps...first tube i found worked...

 

[Robran68]

Same thing happened to me. Told the people to verify its a 19" multiple times, get it home and its a 20"...junk. Next i find a 19" but its the slim neck..i am now 1 for 3 on my tube swaps...first tube i found worked...

You can use the WG7000 chassis on the small neck 8 pin tubes.

 

[mhanlen1]

51 = 20 inches CRT
48 = 19 inches CRT
63 = 25 inches TV
66 = 26 inches TV
68 = 27 inches TV
34 = 13 inches TV
36 = 14 inches TV

Huh?

I was talking about just the model # where the actual size is contained in the model #.

Like in this image.

TH-50PZ700AU

In this model # 50 is the diagonal measurement. While this may be from a plasma television, tubes have model #'s just like this. If you were to search for a particular model of TV on a manufacturers website that would be what you'd use.

 

[Fudd]

Yah, another kick to the balls was that its 7 pin

You can use the WG7000 chassis on the small neck 8 pin tubes.

 

[Peale]

Huh?

I was talking about just the model # where the actual size is contained in the model #.

He was talking about the the model number of the tube. The first few letters/numbers usually indicates the size of the tube.

A48xxxxxxx = 19" tube
a50xxxxxxx = 20" tube

etc etc.

But yes, usually you can grasp the size of the tube by the model number.

 

[mhanlen1]

He was talking about the the model number of the tube. The first few letters/numbers usually indicates the size of the tube.

A48xxxxxxx = 19" tube
a50xxxxxxx = 20" tube

etc etc.

But yes, usually you can grasp the size of the tube by the model number.

Ahh... gotcha. I didn't know that. I guess if you're looking at the tube that would come in handy. Well if you can't see the tube or don't want to open the TV, the model # will give you the information.

 

[modessitt]

Huh?

I was talking about just the model # where the actual size is contained in the model #.

Like in this image.

TH-50PZ700AU

In this model # 50 is the diagonal measurement. While this may be from a plasma television, tubes have model #'s just like this. If you were to search for a particular model of TV on a manufacturers website that would be what you'd use.

Maybe on newer TV's. I had an older 13" with a model # of MTX-883. That doesn't really say 13"...

 

[modessitt]

BTW - I just ordered some universal chassis' from Alva Amusement and got some prices. Prices for 19" chassis were from $49.95-$54.95 depending on pins (8 or 10), neck size (22.5 or 29.5), or isolation (needed or not).

Once I get these in on Monday, I'll let y'all know what I think. If these work out, then I might start picking up free of cheap 19" TV's, swapping them to an arcade frame, and sticking a universal chassis on it. Total cost about $80 for a good-as-new monitor with no burn-in, and I won't have to do yoke or magnet swaps either, so I won't have to worry about convergence issue or yoke placement issues.....

 

[mhanlen1]

Maybe on newer TV's. I had an older 13" with a model # of MTX-883. That doesn't really say 13"...

I used to be a TV salesman at Circuit City, and every TV we ever sold there had the TV size contained in the model #. There may be a few flukes out there, or maybe some really old models may not, but if you were to look at the back of TVs in your house I'd say all of them have those types of model #'s It's definitely way more common than it isn't and a whole hell of a lot easier than trying to find a tube model #.

 

[modessitt]

Yeah, it is now. I always check the 13" or 19" tv's to make sure they don't have a 14 or 20 (although some Japanese models measure their TV's differently - outside edge instead of viewable area - which is why the 19" Sanyo monitor is called a 20EZ).

My bigger problem is they won't let me pull the backs off the TV's at Goodwill so I can check the tube numbers. You can't always find that info online....

 

[orion3311]

LED Flashlight/Penlight - worked so far for me. The goodwill people give you a little odd looks but hey - at least they're making money from trash practically. The looks get a little more interesting when you pull 4 early 80s tvs off the shelf and need 3 carts to haul them all out

BTW here's my list - again if anyone finds a good donor TV, email me through the site or PM here with the make and model # of the tv, the tube #, and possible ohms on the yoke (horiz = red+blue wires, vert = yellow/green).

http://www.junknet.net/index.php?option=com_content&view=article&id=121&Itemid=121

 

[modessitt]

Did you not read the first post of this thread? It has another to add to your list. i still have the yoke (I think) and can get measurements...

 

[Wundercade]

Hey Mod.

I just found a Signature 2000 at a thrift store for 30.00.

Any update on having to swap out the yoke?

Should I go back and buy it?



.

 

[orion3311]

Did you not read the first post of this thread? It has another to add to your list. i still have the yoke (I think) and can get measurements...

You didn't list the model #! Rca made 6 trillion XL-100s but that doesn't mean they're all the same!

Get me a model numbuh!