The 802 is just a number of close wound turns at the bottom of the form
to increase the inductance. I have never measured the series resonance
but my old 4-1000A rig was converted to cover 160 meters through 10 meters
and my friend who has it now has no problems. (knock on wood) gfz
-----Original Message-----
From: Paul Christensen [mailto:w9ac@arrl.net]
Sent: Wednesday, April 13, 2005 8:44 AM
To: Carcia, Francis A HS; 'Kenneth D. Grimm, K4XL'; John Irwin
Cc: amps@contesting.com
Subject: Re: [Amps] B&W plate choke
> Easy to repair though. I've heard of guys winding resistance wire on them
> to
> reduce the Q. gfz
I believe Dick Bryd, N4UQ still has a B&W upgrade program where he takes
your #800 in on trade and then issues out a re-wound #802 choke (on old #800
ceramic cores) from his bench inventory. I used his chokes for my Alpha 77
and 70V, and I was very pleased with his work, pricing, and turn-around
time.
http://www.n4uq.com/
-Paul, W9AC
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