Amplifone / WG6100 Yoke rewinding attempts

No, I meant with the tube info. I'm not savvy enough to attempt a yoke rewind. Best I've been able to do is rebuild original boards and tube swaps. I'd always had it in my mind to try to build a 25" Amp for a multi-vector, but never did so.
 
Maxstang said:
No, I meant with the tube info. I'm not savvy enough to attempt a yoke rewind. Best I've been able to do is rebuild original boards and tube swaps. I'd always had it in my mind to try to build a 25" Amp for a multi-vector, but never did so.
Click to expand...

There are more 25" tubes, those are just the A63's for now
I will eventually do a 19" list too. 1 thing at a time.

. . .

If you think about it, the universal chassis (Raster) works on almost all tv's with a black or silver cases. Whether it's 8 or 12 pin, it still works, just the neck board is changed. That tells us that the pinouts on most TVs are the same.

The uni chassis adjustments allow us to cover a wider range of tubes, and only the yoke resistances (On a TV) and the number of pins are needed to determine the type of universal chassis is needed.

So relating that to the Amplifone setup. ALL The yoke resistances are going to be the same, as we will rewind them, or use an original yoke. So, all we need to know is, how many pins does the neck have, supply that connector, and it should work. Right? :D
 
dezbaz said:
You are going to try also?

Go for it!

I got the idea from Jrok, but the only difference is I am using an amplifone, whereas he used a raster chassis for the HV
Click to expand...

I on the other hand was going to try this too, I even have a amp yoke that I was going to copy off of. But as you know I am pretty caught up with other items at the moment. Plus you are already in the "winding" mode since you are building all those parts for the amp pcbs, so I'll only pick it up if something causes you to not finish (which I doubt will happen)

Good work on this. I think JROK gave the exact count from an original amp yoke on how many times to wind each side.

Since the deflection yoke only really cares what angle the tube shape is, it will work regardless of 8 or 9 pin tubes. The only other important spec for the deflection yoke is the drive circuit from the deflection board, but since these will be used in conjunction with amplifone deflection boards, you shouldn't have to re-engineer them in any way.
 
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Tronic said:
I on the other hand was going to try this too, I even have a amp yoke that I was going to copy off of. But as you know I am pretty caught up with other items at the moment. Plus you are already in the "winding" mode since you are building all those parts for the amp pcbs, so I'll only pick it up if something causes you to not finish (which I doubt will happen)

Good work on this. I think JROK gave the exact count from an original amp yoke on how many times to wind each side.

Since the deflection yoke only really cares what angle the tube shape is, it will work regardless of 8 or 9 pin tubes. The only other important spec for the deflection yoke is the drive circuit from the deflection board, but since these will be used in conjunction with amplifone defection boards, you shouldn't have to re-engineer them in any way.
Click to expand...

He has, I just wanted to confirm
Very happy with the res of this pic :) Click for really big pic


This is a WG, Jrok was doing the Amp 19"
 
I've got a loose Amplifone yoke if you need pics.

Or if you need to, you can borrow it from me for a while...it's just a spare for me....
 
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dezbaz said:
So relating that to the Amplifone setup. ALL The yoke resistances are going to be the same, as we will rewind them, or use an original yoke. So, all we need to know is, how many pins does the neck have, supply that connector, and it should work. Right? :D
Click to expand...

The WG 25" ADG tubes will not work with WG6100 yokes unless you are okay with bad convergence along the top and bottom as shown in the first picture of this thread here:

http://forums.arcade-museum.com/showthread.php?t=175655

I was told that the A63ADG tube will not play nice with the WG6100. This is because the CRT is a combination of yoke + optics (i.e. internal to the neck) + shadowmask. The optics are mated to the shadowmask. Different shadowmask = different optics, which could create a situation that makes convergence with a particular yoke impossible, as shown in the link above. I can confirm that I was never able to get the convergence better than the pictures in the link. With the correct AAX tube, however, I was able to converge those troublesome areas without too much of a problem....
 
m_mcgovern said:
The WG 25" ADG tubes will not work with WG6100 yokes unless you are okay with bad convergence along the top and bottom as shown in the first picture of this thread here:

http://forums.arcade-museum.com/showthread.php?t=175655

I was told that the A63ADG tube will not play nice with the WG6100. This is because the CRT is a combination of yoke + optics (i.e. internal to the neck) + shadowmask. The optics are mated to the shadowmask. Different shadowmask = different optics, which could create a situation that makes convergence with a particular yoke impossible, as shown in the link above. I can confirm that I was never able to get the convergence better than the pictures in the link. With the correct AAX tube, however, I was able to converge those troublesome areas without too much of a problem....
Click to expand...

Thanks :)

This is a work in progress.
Over time we will work out what works and what doesn't. Personally if one type doesn't work, then it's time to try another.

I hope to get this started next weekend or so, so let the fun begin
 
Looks like it could be a A63ABG20X CRT, used in Atari Games, and WG25K5515 chassis

Big thanks to Deb B for the awesome lead.

My monitor is missing that letter through fading, so it certainly fits now.

This is a medium res tube guys and gals, and same pinouts as the Amplifone
 
Heheh....nice to know :)

I already wondered about that....since I own two Hard Drivin' cockpits now :)

Is it also the same angle ?

Don't worry I'm totally going to try and get both HD's running...but the thought crossed my mind that the price of what I paid for both machines was easily worth the CRT alone ;)
 
Level42 said:
Heheh....nice to know :)

I already wondered about that....since I own two Hard Drivin' cockpits now :)

Is it also the same angle ?

Don't worry I'm totally going to try and get both HD's running...but the thought crossed my mind that the price of what I paid for both machines was easily worth the CRT alone ;)
Click to expand...

Looks like 100 degree, the tube is not stamped, but looks the same as others of similar build :)

.

.

I am winding one today, so we will know soon
 
Today I wound a yoke from a TV and put it on the 25" Original Starwars CRT (Only the outer Horizontal winding)

Success!

I have a picture first time

I had to adjust the screen size a little, and later I will converge etc, but it worked (of course)

I have a bit of work ahead, because the screen shape is more like a diamond, or really, more like a trapezium. That just means the outer core needs rotating and gluing.

I can say with certainty, this is the worst rewind I will ever do, meaning it will only get better from here with practice.

So, next is to try it on the WG5515 med res tube and see if it converges up

What's that I hear . . . Pics or it didn't happen LOL
 
Update:
Today I picked up 2 x GO8 yokes, for a bargain price. $25.00 each Ha!

I will try to rewire the horizontal winding to make them work on Amplifones

GO8's use 100 degree tube, as do SW 25" and WG6100 19", so if this works, it would be good
 
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