I had an Omni C with two dead bands on the bandswitch. It turned out that
there was a broken trace on the underside of the circuit board; fortunately
it was on the ground side. I bent cut off resistor leads into little
staple-shaped
pieces and jammed them into the gound side of three of the crystal sockets
(the two dead ones and the nearest working one). The result was that it
tightened the crystals and fixed the bandswitching problem. This turned out
to be zero cost, a complete fix, and almost permanent. No soldering
involved,
the crystals held in the jumpers and vice-versa. Check out the ground
connections
on the non-working crystals before you do anything too serious.
73
Steve WA2SOC
On 2/22/2011 2:45 PM, Hulett, Russell wrote:
> The band switching problems and the lack of some bands may be due to the
> crystal assembly. Opening up the rig, some of the crystals are very loose in
> their sockets. Called Ten-Tec about another socket assembly, of course that
> is unobtanium. They gave me the standard lecture about thirty year-old
> radios being unrepairable.
>
> I'm thinking to replace the electrolytics on the SSB generator board, have
> read folks posting that these miniature caps may not last 30 years.
>
> The display system and finals seem fine, the rig works well on CW. Maybe
> just put it on the shelf for parts.
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
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