At 04:59 AM 2/21/97 -0500, you wrote:
>>From km9p@akorn.net Fri Feb 21 04:59:04 1997
>Donald P. Butler wrote:
>>
>> I cooked a couple fingers on the rotary wafer switch in one of my
>> SB220s last weekend during the contest.
>>
>> I checked with Al, WA4DRU, who sells Heath amp parts and upgrade
>> kits.....he no longer has them available
>>
>> Does anyone know of a possible source for a replacement? ..or
>> suggestions for repairing the bad switch?
>>
>> Hopeful??
>>
>> Don, N5LZ
>>
>
>
>Hi Don,
>
>When I acquired an SB-220 a few years ago, it has several burned
>contacts. After looking unsuccessfully for a replacement at a reasonable
>cost, I went the repair route.
>
>At a hamfest, I found some switches with nice gold plated contacts for
>about a dollar per switch. I drilled out the rivits holding the
>contacts, and fitted them to the damaged switch (I replaced them in
>pairs--one on each side of the wafer). To hold the new contacts in
>place, I cut a piece of thick copper wire, and inserted it through the
>rivit holes and through the switch wafer. I then soldered the contacts
>into place against the shaft of the copper wire.
>
>Obviously, this is delecate work; but if you're so inclined, you can make
>the switch as good as new.
>
>Good luck,
>Dan - W4TQ
HI everyone...
I did the same thing once, but used small nuts and bolts to hold the
contacts in place. Where did I get something that small? An optometry
shop. They are used to repair glasses.
Lee
k0wa@southwind.net
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