I place the glitch resistor right at the base of the plate choke so it will
be effective as a RFC and the PS end bypassed. Something in the vicinity of
7-10uH is fine and if something bigger as a resistor is needed then add at
the PS.
Gotta love nichrome when it is actually doing something useful! You can
even use the nichrome wire from one of those voodoo supressors and wind a
choke.
Carl
KM1H
----- Original Message -----
From: "peter chadwick" <g8on@fsmail.net>
To: "Carl" <km1h@jeremy.mv.com>; <amps@contesting.com>
Sent: Sunday, November 10, 2013 7:47 AM
Subject: Re: [Amps] Plate Choke question
Presence of a glitch resistor is a 'given', Carl. I have one in the power
supply: it has to be effective since it's nichrome and we all know that
nichrome is the magic answer to all evils! An 80 ohm, 100 watt, 10 inch
long, 1.5 inch diameter vitreous enamelled glitch resistor, complete with
WW2 RAF stores number stamped on the end cap.
So the resistor doesn't explode when there's an arc - the 40 gauge fuse
wire goes instead. As that it is suspended between two 6 inch long ribbed
ceramic stand offs 6 inches apart, there's not enough material to set up
an arc path.
73
Peter G3RZP
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