why not check the 120vac with a voltmeter after the step-start circuit ??
probely you have to change the resistor from the st-st circuit.
for chematics look at http://www.harbachelectronics.com/
and go to instructions.
marc on4ma
----- Original Message -----
From: "Jeff Strailey" <liveccam@yahoo.com>
To: <Amps@contesting.com>
Sent: Monday, May 29, 2006 6:11 AM
Subject: [Amps] More LK500
> My problem with operating an LK500 following the change to 120 Vac
operation appears to be related to a step start mod that was added at some
time to the amplifier. Perhaps someone has a schematic or other information
regarding a step start mod kit that was sold at some time for the LK500. It
is tempting to simply remove it and restore the AC input side of the
amplifier to it's original state but step start is desirable if it can be
made to work.
>
> Jeff K6TLA
>
>
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