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48-482 Performance Second Opinion
DCASAZZA
Capacity for resistance
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Posts: 46
Threads: 14
Joined: May 2008
City: Lake Worth Florida
#3

11-08-2009, 09:58 PM
Made it better
While mucking around one last time before mounting it back in the cabinet I noticed the reception got better if I touched the mica cap lead between the ant coil and the converter tube with a small screw driver so I replaced it. Wow is this front end HOT. Even SW got a shot in the arm. I'm DXing the eastern US and don't know what else (at night of course) with the 3 turn loop ant it brung to this dance. Even though the RF peaked as I adjusted the ant trimmer; still, it got better if I touched the 22pf's lead. I figure it should get worse if I touched it by throwing it out of tune.
I mis-read the schematic and replaced a 22pf with a 220pf cap. The Ant Trimmer range on BC and SW is the same as with the old 22 pf mica cap
A 27pf cap took me back to the old disapointment. The 220pf is back in service!

Now here's the question.
Did I discover a new mod?
Is there a replacement of a slowly failing ant coil in my future? This coil ohm'd out OK and looks very good. As much as I want the radio to be original I also realize that success is measured by results.

Thoughts?
Dave Casazza
Keep em glowin and goin...
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Messages In This Thread
48-482 Performance Second Opinion - by DCASAZZA - 11-02-2009, 11:27 AM
Re: 48-482 Performance Second Opinion - by Fred R - 11-02-2009, 01:48 PM
Re: 48-482 Performance Second Opinion UPDATE - by DCASAZZA - 11-08-2009, 09:58 PM



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