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  #16  
Old 09-10-2015, 02:17 AM
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Quote:
Originally Posted by dieseljeep View Post
What color is it? IIRC, the replacements were a different color than the originals.
This is the second reference to color. I assume the color of the plastic. My 64 or 5 Zenith has what I consider to be the more common of cloverleafs that I have seen being that each magnet casing is the color of the electron gun it is controlling. So mine is red, blue and green. It's not a replacement and looks like the ones I saw decades ago. What am I getting wrong? Just curious....
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  #17  
Old 09-10-2015, 10:38 AM
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My two broken ones are entirely off-white, not RGB.
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  #18  
Old 09-10-2015, 11:11 AM
dieseljeep dieseljeep is offline
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Originally Posted by old_tv_nut View Post
My two broken ones are entirely off-white, not RGB.
Yours are the original Zenith issue.
IIRC, the last two model years, probably M & N, Zenith decided to use a purchased cloverleaf, instead of their own. They still made the convergence control board with the coils that would crumble.
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  #19  
Old 09-10-2015, 11:15 AM
dieseljeep dieseljeep is offline
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Originally Posted by Tubejunke View Post
This is the second reference to color. I assume the color of the plastic. My 64 or 5 Zenith has what I consider to be the more common of cloverleafs that I have seen being that each magnet casing is the color of the electron gun it is controlling. So mine is red, blue and green. It's not a replacement and looks like the ones I saw decades ago. What am I getting wrong? Just curious....
I just discussed this with a friend that collected a lot of old Zenith parts and agreed the last of the roundies used the RGB colored magnets.
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  #20  
Old 09-10-2015, 06:28 PM
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I changed a LOT of cloverleafs in the day.
21" sets employing a cloverleaf had (interchangeable) magnets used for static adjustment. They were not color coded.

Period.

They were identical and could be used with any convergence coil. I sometimes had to swap magnets when they became weak and not give the range on 1 gun but would on another. I believe the wires going to each of the 3 coil assemblies were color coded.

25" sets had the 3 separate color coded plastic encased coils with magnet that when assembled was the convergence assembly.

I don't remember any 21" tubes using the encased assembly but I guess it is possible.

Last edited by reeferman; 09-10-2015 at 06:35 PM.
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  #21  
Old 09-10-2015, 06:39 PM
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Quote:
Originally Posted by reeferman View Post
I changed a LOT of cloverleafs in the day.
21" sets employing a cloverleaf had (interchangeable) magnets used for static adjustment. They were not color coded.

Period.

They were identical and could be used with any convergence coil. I sometimes had to swap magnets when they became weak and not give the range on 1 gun but would on another. I believe the wires going to each of the 3 coil assemblies were color coded.

25" sets had the 3 separate color coded plastic encased coils with magnet that when assembled was the convergence assembly.

I don't remember any 21" tubes using the encased assembly but I guess it is possible.
Only the plastic housing is color coded. Yes, the magnets and coils are interchangeable, but the cloverleaf (Plastic housing that holds the coils and magnets) had two colors - an off-white one, where all three were the same color, and an RGB one like the pic below.

What color is your NOS cloverleaf, Reeferman? White, or RGB?
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Last edited by Findm-Keepm; 09-29-2017 at 07:37 PM.
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  #22  
Old 09-10-2015, 10:56 PM
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What is in your picture is not a cloverleaf in the traditional sense of the word..
If you went to a Zenith parts distributor and asked for a cloverleaf, you would not get one of those.
If I can ever figure out Windows 10 I'll post a pic of one.
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  #23  
Old 09-10-2015, 11:05 PM
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http://videokarma.org/attachment.php...4&d=1422039377

White one...
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  #24  
Old 09-11-2015, 08:02 AM
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That's the cloverleaf in the traditional serviceman's jargon.
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  #25  
Old 09-11-2015, 10:18 AM
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Quote:
Originally Posted by reeferman View Post
That's the cloverleaf in the traditional serviceman's jargon.
Both are cloverleafs in my servicing world - convergence yokes, convergence coil assembly, convergence housing.....all clover leafs.

The question is can one be 3D printed - the white cloverleaf is what folks are looking for. You answered "Nope, same color" so some (including me were still unsure of the color - was it the RGB type or the white? - which is the purpose of my clarification posts.

So I presume you have a NOS white cloverleaf?

Quote:
Originally Posted by reeferman View Post
I have a NOS cloverleaf I'm saving for that "yet to find Zenith".
You are more than welcome to use it as a model for making reproductions.
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  #26  
Old 09-11-2015, 05:29 PM
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Here's another reference picture of a white one that was posted by another VK member a while back. Sorry I don't recall who it was. Interestingly my Zenith 5119(chassis 25LC30), which I thought was a 1964 model, has the red/green/blue version. So it may have been replaced at some point.


Last edited by Kevin Kuehn; 09-11-2015 at 05:35 PM.
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  #27  
Old 09-11-2015, 08:02 PM
dieseljeep dieseljeep is offline
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Quote:
Originally Posted by Kevin Kuehn View Post
Here's another reference picture of a white one that was posted by another VK member a while back. Sorry I don't recall who it was. Interestingly my Zenith 5119(chassis 25LC30), which I thought was a 1964 model, has the red/green/blue version. So it may have been replaced at some point.

That's the number, I was trying to remember!
I know, I bought a few when I was still repairing.
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  #28  
Old 09-11-2015, 08:42 PM
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Quote:
Originally Posted by reeferman View Post
I don't remember any 21" tubes using the encased assembly but I guess it is possible.
https://www.flickr.com/photos/nasadowsk/8298305054

Sylvania 580 chassis.
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  #29  
Old 09-11-2015, 10:51 PM
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Yes, I now remember the multi-color convergence assemblies on the newer roundies and the rectangular tubes. Thank you. I don't ever recall having to replace one.

I was in the service world during the period, and asking for a replacement cloverleaf at the parts house got you the "white" one.

Remember, this thread started out looking for a replacement "white" cloverleaf for a '64 Zenith. Not the multi-color assemblies.
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  #30  
Old 09-12-2015, 01:21 AM
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Originally Posted by old_tv_nut View Post
Of course I meant the whole assembly. Although the frame itself might be sufficient, I'm not sure why anyone selling the frame would want to keep the coils without it. So, anything that fixes my problem.
So could you use an RGB style, or are you going for originality?

Doug may have one in the RGB style, seen in his video for his 25MC30 set:

https://www.youtube.com/watch?v=Mo8n3jLoM_U

At 1:46 in Doug's video you see the RGB Convergence Assembly, what Zenith used in later years, when they abandoned the white cloverleaf and coils. Interchangeability is assured if the plugs on the assemblies are the same - the chassis are wired alike (per Telematic jig lit).

I don't have one, but do have a line on a Zenith roundie combo of undetermined vintage - it's an estate sale regret a buddy purchased and stored in his uncles place. That's my only dog in this hunt.

Cheers,
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