FM Alignment of 48-482

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FM Alignment of 48-482

Sean
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Posts: 151
Threads: 5
Joined: Oct 2005
City: Sullivan, MO

01-05-2010, 09:50 AM

I got the hum issue solved. It turned out that the 7F8 was modulating its local oscillator signal with hum. I replaced the tube and the problem went away. I'm guessing there is some heater-cathode leakage.

I am now buttoning up this set. I would like to reproduce the FM line aerial that was originally on these sets (Z100 on the schematic). I am assuming it is just a plate of thin sheet metal wrapped around the power cord. Is this correct? Does anybody have one of these sets that still has the original line aerial on it?

Sean
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Messages In This Thread

FM Alignment of 48-482 - by Sean - 11-21-2009, 11:06 AM

Re: FM Alignment of 48-482 - by Ron Ramirez - 12-01-2009, 08:29 AM

Re: FM Alignment of 48-482 - by Terry Judkins - 12-03-2009, 10:53 PM

Re: FM Alignment of 48-482 - by Sean - 12-05-2009, 05:21 PM

Re: FM Alignment of 48-482 - by DCASAZZA - 12-10-2009, 09:38 AM

Re: FM Alignment of 48-482 - by Don Lind - 12-12-2009, 02:27 PM

Re: FM Alignment of 48-482 - by Sean - 01-05-2010, 09:50 AM

Re: FM Alignment of 48-482 - by Ron Ramirez - 01-05-2010, 11:08 AM

Re: FM Alignment of 48-482 - by Sean - 01-09-2010, 02:08 PM

Re: FM Alignment of 48-482 - by Ron Ramirez - 01-09-2010, 03:06 PM

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