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Old 01-09-2018, 02:35 PM
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DavGoodlin DavGoodlin is offline
Motorola Minion
Join Date: Aug 2011
Location: near Strasburg PA
Posts: 2,868
I have been working on the RCA "chassis 5377" and since found the vertical linearity pot's wiper arm is open. This vertical multi-vibrator circuit is ridiculously simple and if any one component fails*, MAJOR hard fails-not minor symptoms, present like no sweep.

Looking at the SS105, which has a 12AU7 dated 59-35, it also needs to be recapped before I test it on this TV.

* Muntz's rule = remove parts until it doesn't work. known as "Muntzing" a circuit.
"When resistors increase in value, they're worthless"
-Dave G
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