[Amps] Harbach metering board in SB-220

Mike & Becca Krzystyniak k9mk at flash.net
Fri Mar 7 08:18:25 EST 2014


   I worked on a SB220 recently that had a wire along with copper pad lift
off the original PCB (opening the circuit) and was floating a few mils behid
the PCB.  Of course it was hard to see as it was bottom back side under the
bundle.  As Bob says, maybe the common wire came loose or other too.

73  Mike K9MK


-----Original Message-----
From: Amps [mailto:amps-bounces at contesting.com] On Behalf Of Bob Alexander
Sent: Friday, March 07, 2014 7:03 AM
To: 'Pete Smith N4ZR'; Amps at contesting.com
Subject: Re: [Amps] Harbach metering board in SB-220

Hi Pete,
If the Grid meter works OK the only thing common to the HV and rel. out is
the three position switch on the front panel.
Ive replaced one or two over the years on 220s I've rerbuilt/restored.  Not
sure of a good source now.

73, Bob, W5AH



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