Jim, if you know this to be true why do you call it a theory? Just wondering.
### heres one way to test my theory. Toss the load cap..and replace it with
a
50 ohm resistor....
then wire from top of resistor with strap, wire etc, over to a coax
connector......then on to the
MFJ-259B. Now see if the MFJ says 1:1 swr.
-----Original Message-----
From: Jim Thomson <jim.thom@telus.net>
To: amps <amps@contesting.com>
Sent: Sat, Dec 7, 2013 8:22 am
Subject: [Amps] PARALLEL CAPS IN OUTPUT
From: "Carl" <km1h@jeremy.mv.com>
> To: "Jim Thomson" <jim.thom@telus.net>, <amps@contesting.com>
> Subject: Re: [Amps] PARALLEL CAPS IN OUTPUT
With all your bluster you still dont get it. All you are using is a short
piece of shielded cable, impedance has no bearing since it is too short to
present a meaningful reactance.
Your load cap change is due to the added C to ground of that shielded cable.
Having it is beneficial if the cable is long or passes near other circuitry
such as the input. Lift the RG-8 shield on a SB-220 and see what happens.
A high percentage of the ones I get thru here have cold solder joints which
will do wonders for stability.
Carl
### heres one way to test my theory. Toss the load cap..and replace it with
a
50 ohm resistor....
then wire from top of resistor with strap, wire etc, over to a coax
connector......then on to the
MFJ-259B. Now see if the MFJ says 1:1 swr.
Jim VE7RF
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