Amps
[Top] [All Lists]

[AMPS] Clipperton L parasitic choke circuit

To: <amps@contesting.com>
Subject: [AMPS] Clipperton L parasitic choke circuit
From: w6rw@earthlink.net (Michael S. Mitchell, W6RW)
Date: Sun, 12 Oct 1997 14:46:25 -0700
Hi there Carl.....in a AMPS reflector posting that you made to
Rich Measures on October 10 concerning B+ glitch resisors you
briefly mentioned the Clipperton L problem that I have been
experiencing....mainly that the parasitic choke resistors start
to smoke when I tune up on 10 meters. The circuit consists of
a 100 ohm 2 watt carbon resistor with a coil formed around the resistor
(or in parallel with it) consisting of 5 turns of wire. There is
one of these on each of the four 572B tubes. I have tried reducing
the number of turns on the coil to 4, but the resistors still 
smoke on 10 meters but at a higher power output level than before.
I am thinking about using a 68 ohm 2 watt carbon resistor and
reduce the turns on the coil to 3 turns.

I wonder if you have had any experience with this problem with
the Clipperton L and if so what you did to fix it.

I am sending a CC of this to the AMPS reflector to see if
anybody else out there has figured this one out.

Thank you for your help es 73 de Mike/W6RW

--
FAQ on WWW:               http://www.contesting.com/ampfaq.html
Submissions:              amps@contesting.com
Administrative requests:  amps-REQUEST@contesting.com
Problems:                 owner-amps@contesting.com
Search:                   http://www.contesting.com/km9p/search.htm

<Prev in Thread] Current Thread [Next in Thread>