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  • October 8, 2025 at 3:26 pm #34871
    Rick D
    CVRS Member

    Hello , I want to restore a Westinghouse model 780-B ,any chance anyone has a good schematic and a parts list , would be very thankful if you could share it with me , thanks for your time all the very best Rick

    October 8, 2025 at 4:10 pm #34872
    Jim Sirtonski
    CVRS Member

    Here’s a schematic Rick. First glance looks a bit grainy but if you zoom in it’s quite clear. I’ll try to find a parts list as well but I don’t think there was one published in the RCC manual.

    Jim

    October 8, 2025 at 4:13 pm #34873
    Jim Sirtonski
    CVRS Member

    File was too large. Hope you can read a png file.

    Jim

    Attachments:

    1. Westinghouse-780-Y-Schematic-scaled.png

    October 9, 2025 at 11:21 am #34875
    Rick D
    CVRS Member

    Thanks Jim your right if I zoom in it is quite clear , thanks so much , I would love to have the parts list if you find it, thanks again all the very best Rick

    October 10, 2025 at 6:44 pm #34876
    Rick D
    CVRS Member

    Hello again , can anyone tell me how to count the tube base PIN numbers ,on most schematics you se the tube key slot and count from there counting clockwise or they are numbered on the schematic, I don’t see the key slot on the schematic , some one along the way has messed with this set and I want to check all connections and follow them to make sure they are correct, I know this takes a lot of time but I want to be sure everything is as it should be and I need to know the tube PIN numbers so I can trace all wires and parts , thanks for any help all the best Rick

    October 10, 2025 at 7:43 pm #34877
    Dan Walker
    CVRS Member

    Hi Rick.. If you have a book showing the tubes [like an RCA tube book] , you can look up the tube and
    it will point out the grid , heaters etc, and it will tell you the pins numbers on the tube then you can look at the schematic and
    go from there. I hope This is not too confusing.
    Dan in Calgary

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