[AMRadio] Filament choke

Edward Swynar gswynar at durham.net
Fri May 1 13:23:59 EDT 2009

Hi Steve,

What kinda fixed padder capacitors are you placing in parallel with that
plate tuning capacitor, as well as the plate loading cap, in the final

I'm sure you're already well aware of it, but you've gotta be REAL PICKY in
these applications, as I discovered here the hard way...! Hi Hi.

~73~ Eddy VE3CUI - VE3XZ


----- Original Message -----
From: <sbjohnston at aol.com>
To: <glowbugs at piobaire.mines.uidaho.edu>
Cc: <amradio at mailman.qth.net>
Sent: Thursday, April 30, 2009 9:36 AM
Subject: Re: [AMRadio] Filament choke

> Here's my schematic so far for the 160m amp:
> http://www.wd8das.net/160m-GI7B.JPG
> This one won't be a as pretty as some... I'm going to build it on a
> steel chassis that has been used by others for at least four other
> projects and is literally swiss-cheesed with useful holes.  (more holes
> than steel maybe)
> The front panel is 1/8" aluminum sheet also somewhat holey, but
> smoothed and now painted nicely with textured gray.  The cabinet looks
> like it came from a later-vintage Meissner Signal Shifter with liftable
> lid and plenty of ventilation holes.
> Steve WD8DAS
> sbjohnston at aol.com
> http://www.wd8das.net/
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