Scott 6T11 yoke question..

[bgadow]

I had some yokes that I junked a while back. I decided to take them apart so I could salvage the copper. One was similar to that in that it had just a bunch of steel wire around a core. I've been curious ever since just how that was supposed to work. Now we can both sit here and wait for somebody to tell us!

[Penthode]

It wasn't too clear in the photograph. But my guess is it could likely be a magnetic shunt to reduce the scan width. Otherwise if it may have been used for focus.

[dieseljeep]

Originally Posted by Penthode

It wasn't too clear in the photograph. But my guess is it could likely be a magnetic shunt to reduce the scan width. Otherwise if it may have been used for focus.

The real early yokes had steel wire wrapped around around the yoke windings instead of the ferrites. I took a few of them apart and I discovered that.

[wa2ise]

Originally Posted by dieseljeep

The real early yokes had steel wire wrapped around around the yoke windings instead of the ferrites.

The steel wire would be similar to the lamentations in a power transformer. But made small enough to avoid eddy currents at 15KHz (the horiz frequency).

[EdKozk2]

The plastic yoke bobbin looks similar to the yoke bobbin in the motorola I rewound last winter.
Ed
http://www.videokarma.org/attachment...9&d=1519936366

[Phil]

Thanks to all who replied. Yes, this set was on Ebay recently. I know I paid way too much for it but I had been wanting one of these for a long time and don't see them for sale everyday. It turns out the original owner played for the New York Highlanders/Yankees in 1912 and then became a rather famous chiropractor. At least it has an interesting history! Anyway, after recapping it and checking all resistors and replacing any that were out of tolerance I applied power and found I have a short on the B+ line. It turned out to be a short (10 ohms) between the horizontal winding in the yoke and ground. So either I have to figure out how to rewind this strange thing or find a replacement. Does anyone have a good yoke you want to sell?

[Joe Connor]

Phil, here's a link to the roster of the 1912 Highlanders. Which guy is he?

https://www.baseball-reference.com/teams/NYY/1912.shtml

[Electronic M]

Originally Posted by Phil

Thanks to all who replied. Yes, this set was on Ebay recently. I know I paid way too much for it but I had been wanting one of these for a long time and don't see them for sale everyday. It turns out the original owner played for the New York Highlanders/Yankees in 1912 and then became a rather famous chiropractor. At least it has an interesting history! Anyway, after recapping it and checking all resistors and replacing any that were out of tolerance I applied power and found I have a short on the B+ line. It turned out to be a short (10 ohms) between the horizontal winding in the yoke and ground. So either I have to figure out how to rewind this strange thing or find a replacement. Does anyone have a good yoke you want to sell?

So your the reason that one from Indiana is no longer available... I was going to offer them a cnote if it stayed up longer...given that set was missing it's CRT and that a complete one auctioned for less than 300 at the last radiofest meet the 400 they were asking was way too much.