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For Zenith Late 60's Early 70's. You could get Hybred first early 70's. This was solid state with High Voltage Tubes. Then 1974-5 all Solid State . Zenith waited & did modual only for each circuit. This way like a tube, problems in vertical change modual. You could repair modual or put in New one. Fix later or send back for refurbish.
RCA did XL 100 First Solid State TV, but one one big board. Big board had lots of bugs in it. Both come out saying no more Vertical & Horizontal Hold control ever again. RCA did modual soon after big board bugs. Modual had epoxy or somthing covering parts.
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Alway's Looking for Kaye Halbert Info & other Vintage TV,Stereo,Radio. Kaiser-Frazer ...
Last edited by G.B.; 11-15-2013 at 11:52 AM.
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