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#1
09-24-2012, 08:24 PM
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Early 50's set, Is this missing the deflection yoke?
I am considering buying this set, and this maybe an obvious question,
but is this missing it's deflection yoke? I see something inside a box on the chassis that looks like a yoke, I just don't know. Looks like an early 50's set. Magnavox300 
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#2
09-24-2012, 08:31 PM
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isnt that the yoke on the neck of the CRT with the wire going to the HV box?
Weird lookin but i think its a yoke  SR
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#3
09-24-2012, 08:47 PM
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I see a yoke!
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#4
09-24-2012, 08:55 PM
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Looks like a WEIRD anorexic yoke, but can't think of any other item that would be on a b/w set's CRT neck. I would have suspected the yoke missing too, but does look like you have at least three wires going to it from what I can discern.
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My current "holy grail" is trying to get enough parts together to get a Singer TV6U going. Been kicking my ass for nearly a year now :-P
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#5
09-24-2012, 08:57 PM
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Ok, my fault.
I guess I am used to seeing the yokes with exposed copper pushed up against the CRT. In the photo, the yoke looked like a continuance of the CRT.
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| Audiokarma |
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#6
09-24-2012, 09:02 PM
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Deffinately not what I am used to seeing either. Don't blame you one bit for wondering. I would have REALLY wondered if I saw that just through the cabinet. This is not by chance what "electrostatic" looks like (as opposed to the usual magnetic deflection)??
I have never seen electrostatic deflection in person....so just curious.
__________________
My current "holy grail" is trying to get enough parts together to get a Singer TV6U going. Been kicking my ass for nearly a year now :-P Last edited by AiboPet; 09-24-2012 at 09:06 PM.
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#7
09-24-2012, 09:12 PM
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Electrostatic deflection is done inside the neck of the tube with charged plates. The tube looks similar to a magnetically deflected tube but with a larger neck size than would be expected for a small tube and the lack of any yoke. Look up a 7JP4 for a great example.
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#8
09-24-2012, 09:34 PM
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I just wondered if there was an "external" type of electrostatic. I have seen just the theoretical drawings of it before....and aware that "usually" it's a set of charged plates inside the CRT for X and Y I guess. I did once see the CRT to one of Clive Sinclair's little mini set that reminded me of my little "TR" panasonics. The Sinclair had a "real fat neck" that was nearly if not as big as the screen. This was a real miniature one though. The little Panasonics are magnetic, with cute little yokes on VERY cute little CRTs :-P
After looking at the pic even more....YEAH....looks like a real thick neck, and then an odd termination and smaller neck. I was sorta being curious about those three wires coming from the cage to what LOOKED like that area. I'm not sure I have ever seen "three wires" to a yoke...but hey.....I was thinking "who knows..maybe vertical and horizontal with a common ground"
__________________
My current "holy grail" is trying to get enough parts together to get a Singer TV6U going. Been kicking my ass for nearly a year now :-P
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#9
09-24-2012, 09:53 PM
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Here is a picture of my 1953 17" Philco... The yoke is seen ahead of the focus magnet, touching the bell of the CRT, but has no exposed windings wrapping over the bell. This is typical of 70 degree or smaller angle yokes of the period.
jr
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#10
09-24-2012, 10:05 PM
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Quote:
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| Audiokarma |
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#11
09-24-2012, 10:09 PM
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Quote:
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#13
09-24-2012, 10:23 PM
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yea its just a different shape
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#15
09-28-2012, 01:29 AM
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Quote:
Last edited by Tubejunke; 09-28-2012 at 01:32 AM.
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