37-650 Issues

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37-650 Issues

Robbie Roberts
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Posts: 147
Threads: 28
Joined: Nov 2005

#13

01-27-2006, 07:44 PM

It has never gotten read loud- except on one or two very close(and strong) radio stations, and even those would not be as loud as normal.

I just went back and checked my pre-op photos of the volume control, and it very definitely connects between the RF subchassis ground point on the Antenna section, and the antenna #3 or GND terminal, with the same wire also grounding the no.1 terminal on bakelite cap no. 32.

I just went and rechecked all my tubes, and one 6K7G(RF amp) has a short indicated on the 8 & 9 pins. Intermittant, but there none the less, so I swapped in a spare. I now have a burr on AM band, but no reception as such. Sounds like electric razor interference... The tone changes with frequency change on the am band- higher freq, faster noise, lower, slower... If I touch the top terminal of the 1st audio tube(6K5GT) it also changes dramatically. becomes a more pronounced wuhh-wuhh-wuhh. Touching any other top terminal just dampens it a little. No action on the sw bands, at all... Burr was there before I swapped tubes, just to clarify.

Scott

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Messages In This Thread

37-650 Issues - by Robbie Roberts - 01-27-2006, 07:06 AM

[No subject] - by Steve Chambers - 01-27-2006, 08:01 AM

[No subject] - by Robbie Roberts - 01-27-2006, 12:07 PM

[No subject] - by Steve Chambers - 01-27-2006, 12:21 PM

[No subject] - by Robbie Roberts - 01-27-2006, 12:32 PM

[No subject] - by Robbie Roberts - 01-27-2006, 06:02 PM

[No subject] - by Steve Chambers - 01-27-2006, 06:23 PM

[No subject] - by Robbie Roberts - 01-27-2006, 06:29 PM

[No subject] - by Steve Chambers - 01-27-2006, 06:38 PM

[No subject] - by Robbie Roberts - 01-27-2006, 06:41 PM

[No subject] - by Robbie Roberts - 01-27-2006, 06:51 PM

[No subject] - by Steve Chambers - 01-27-2006, 07:05 PM

[No subject] - by Robbie Roberts - 01-27-2006, 07:44 PM

[No subject] - by Robbie Roberts - 01-27-2006, 09:07 PM

[No subject] - by Robbie Roberts - 01-30-2006, 05:12 PM

[No subject] - by Chuck Schwark - 01-30-2006, 07:53 PM

[No subject] - by Steve Chambers - 01-30-2006, 07:59 PM

[No subject] - by Robbie Roberts - 01-30-2006, 08:02 PM

[No subject] - by Chuck Schwark - 01-30-2006, 08:12 PM

[No subject] - by Robbie Roberts - 01-31-2006, 12:52 AM

[No subject] - by Chuck Schwark - 01-31-2006, 09:57 AM

[No subject] - by Robbie Roberts - 01-31-2006, 11:43 AM

[No subject] - by Robbie Roberts - 01-31-2006, 06:40 PM

[No subject] - by Steve Chambers - 01-31-2006, 08:53 PM

[No subject] - by Robbie Roberts - 02-02-2006, 09:24 AM

[No subject] - by Steve Chambers - 02-02-2006, 05:00 PM

[No subject] - by Chuck Schwark - 02-02-2006, 05:47 PM

[No subject] - by Robbie Roberts - 02-02-2006, 06:24 PM

[No subject] - by Chuck Schwark - 02-02-2006, 07:42 PM

[No subject] - by Robbie Roberts - 02-02-2006, 07:43 PM

[No subject] - by Robbie Roberts - 02-02-2006, 08:36 PM

[No subject] - by Chuck Schwark - 02-02-2006, 10:22 PM

[No subject] - by Robbie Roberts - 02-02-2006, 11:03 PM

[No subject] - by Bill Hutchinson - 02-03-2006, 03:20 PM

[No subject] - by Robbie Roberts - 02-03-2006, 03:26 PM

[No subject] - by Bill Hutchinson - 02-03-2006, 07:08 PM

[No subject] - by Robbie Roberts - 02-04-2006, 08:29 AM

[No subject] - by Robbie Roberts - 02-05-2006, 01:42 AM

[No subject] - by 49Stude63 - 02-05-2006, 11:07 AM

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