Scott 6T11 yoke question..
 

I'm in the process of trying to bring a Scott
6t11 back to life and have encountered something in this set I've never seen before.
At the end of the yoke which would be closest to the screen of the CRT there is what appears to be a winding of Rusty iron wore. Also there is a spring clip sort of thing sticking out, which is connected to the ground pin of the yoke connector so this would be to ground the aquadag. On the opposite side there is something that looks almost like steel wool sticking out. I have no clue what it is supposed to do. The horizontal, vertical and focus windings all measure exactly what the manual says they should, so I'm hoping it is good.
Any Scott people know what the Rusty wire is for? Possibly a magnetic shield?

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!

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.

Was this the set that was on ebay recently?

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. :scratch2:

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).

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

yoke problem
 

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?

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

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.

Yep, the one at the Radiofest auction sold for only $240, and the seller indicated on the slip that it was "in working condition".

.

Yeah I usually skip the Friday radiofest auction and don't regret it, but after. I heard what that set went for there I regretted it bad...

Update!
 

After removing the yoke from the contraption to which it is mounted I was able to see the problem. The iron wire had broken and some of it became unwound and dropped down onto a terminal strip below. Since it is grounded this created a short. I had and have no clear idea what this iron wire is for in the first place but decided to simply wind it back as best I could, cover it with electrical tape to hold it in place and see if that would work. :yes: ! As soon as it warmed up I was greeted with a sharply focused, in sync picture. I let it run for some time and the yoke only became slightly warm, as normal, so apparently my crude fix is ok.

To answer some other remarks/questions: I have an envelope with the original operating instructions mailed May of '49 to George P. Shears, DC. in Huntingburg, IN. Also a receipt for tuner repair in 1952 from a shop in Louisville, KY. (They charged him $8.00)
http://billbahan.org/dr-george-shears-dc/

Yep, ol' George had a cup of coffee with the Highlanders in 1912.

https://www.baseball-reference.com/p...hearge01.shtml

Glad to see you got the set working.:thmbsp:
Ed