Hi Gary,
    You may wish to review a posting I made here a decade ago:
http://lists.contesting.com/_amps/2005-02/msg00325.html
73 & Good morning,
   Marv WC6W 
http://qsl.net/wc6w/
--------------------------------------------
On Tue, 1/27/15, Gary Smith <Gary@ka1j.com> wrote:
 Subject: Re: [Amps] Topband: Elimination of Treadmill RFI on 160 meters
 To: Amps@contesting.com
 Date: Tuesday, January 27, 2015, 10:43 PM
 
 I have two Astron power supplies; a
 VS-35M & a RS-35M. The RS-35M has 
 stopped working & I have to track down that issue. While
 I'm in 
 there, are there any known mods I should do to either of
 these? 
 Sounds like I should remove the paint under the lug and
 attach the 
 green wire properly to the chassis.
 
 Anything else that's suggested?
 
 An aside, the lamps in these meters are terrible, both of
 these 
 supplies are fairly new and all four of the  meter
 lamps are dead and 
 absolute buggers to get at. Several calls to the company
 were met 
 with indifference and no replacement lamps.
 
 If there's known mods, I'm always keen on upgrading my
 station.
  
 73,
 Gary
 KA1J
 
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