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Old 07-13-2014, 06:21 PM
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radio nut radio nut is offline
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Join Date: Dec 2007
Location: Lima, Ohio
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Quote:
Originally Posted by earlyfilm View Post
The factory schematic for the Muntz 17A2 (Rectangular 16 inch CRT) shows no capacitors in the vertical yoke, but one 56 pf across the horizontal winding that is between the center connection and the Flyback.

Why did you replace the yoke?

If the yoke was shorted when you got the set, there is a possibility that the previous service person trimmed the capititor out, to confirm that the yoke was bad and not the capacitor. Doing that was SOP back in the day before the shop plunked money down for a new yoke. They were not returnable if installed. Most people junked an older set rather than pay what a new yoke installed would cost.

The vertical squiggle (vertical ringing) in the horizontal lines on the left edge indicates cross talk from some to be determined source, the yoke is one possibility, and another are the electrolytic capacitors. You did replace them, didn't you?

I am agreeing with Old Coot here the cap in the yoke.

Also, redress the position of the resistor and leads to as near where the old one was. When you have drilled out the old one, use one of the holes to mount the new one. (Don't to this and the capacitor test at the same time, or you won't know which worked. It makes no difference which you do first, but leave the first in while you do the second.)

James
My new yoke does NOT have ANY cap in it.....So lets see, I pulled out the one that I need? That makes sense on my part!
I pulled them When I did not get a picture after the yoke was installed, thinking that they were keeping the yoke from working correctly, It did not occur to me that maybe I jarred something loose by dropping the set which caused me to need the ion trap on the other side of the crt neck.

Last edited by radio nut; 07-13-2014 at 06:31 PM. Reason: Added more....again!
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