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Model 70
Ron Ramirez
Silent Key
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Posts: 13,776
Threads: 580
Joined: Sep 2005
City: Ferdinand State, Province, Country: Indiana
#3

01-23-2006, 12:44 AM
Hi Gary

Assuming you're working on an early 70 (without AVC), here's what I would check:
  • Antenna coil (2) and RF coil (6);
    ALL wiring from tuning condenser to the various points under the chassis;
    tightness of the screws on the sides of the tuning condenser;
    the RF amp tube, Type 24.[/list:u]
    I think it's probably a combination of bad antenna coil (2) and/or RF coil (6) and wiring/screw tightness issue on the tuning condenser.

    The second Type 24 tube from the front is the mixer tube, so your problem has to be ahead of that. The wiring/screw tightness on the tuning condenser can cause lots of intermittents.

    Hope this helps. Happy troubleshooting! Icon_smile

    (edit) Well, Chuck and I answered at almost the same time, so now you have two votes pointing to those coils. Take a look at them right away. Good luck.
--
Ron Ramirez
Ferdinand IN
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Messages In This Thread
Model 70 - by n9vu - 01-22-2006, 11:56 PM
[No subject] - by Chuck Schwark - 01-23-2006, 12:37 AM
[No subject] - by Ron Ramirez - 01-23-2006, 12:44 AM
[No subject] - by n9vu - 01-23-2006, 07:02 AM
[No subject] - by n9vu - 01-27-2006, 12:06 AM
[No subject] - by Ron Ramirez - 01-27-2006, 12:59 AM
[No subject] - by n9vu - 02-05-2006, 10:42 PM



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