[Amps] More LK500

[Joe Subich, W4TV]

Jeff, 

Compare your step start (soft start) unit to the one by 
Harbach Electronics (www.harbachelectronics.com).  Those 
instructions may help you get by (including the note that 
it is necessary to use different resistors on 120 volts!). 

The generic "manual" is: 
  http://www.harbachelectronics.com/pdffiles/ss-100.pdf
  

73, 

   ... Joe, W4TV 
 



> -----Original Message-----
> From: amps-bounces at contesting.com 
> [mailto:amps-bounces at contesting.com] On Behalf Of Jeff Strailey
> Sent: Monday, May 29, 2006 2:12 AM
> To: Amps at contesting.com
> 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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