[TenTec] 422 and 422B differences

[Rob Atkinson, K5UJ]

Besides the black look, the 422B is supposed to have a keying mod that
makes it work, or work better, with the Jupiter and Orion.  I don't know 
what the mod is
but I think it is pretty minor (one you can do).  Since I don't have one of 
the new rigs I never
took the trouble to learn about it.  Someone else can probably tell you just
what it is, or you can call Ten Tec service and find out.

The real old 422s are biased so the tubes are drawing some current when not
transmitting.  I think after the first year or two of
production that was changed.

Rob Atkinson
K5UJ

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