[R-390] R-390A with R-390 IF deck on E-Bay

[Dan Merz]

Gordon,  they aren't directly interchangeable without modification.  But
the 390 IF deck will physically and mechanically fit and can be
electrically modified to operate. This mostly involves rewiring the
filaments from series (390 non-a)  to parallel (390a) and a couple of
other changes at the underside of the cable connector plus making up two
cable adapters for BNC to mini-BNC.  The result is a nice sounding
radio,  Dan.

Gord Hayward wrote:

> The R-390A on E-Bay had an R390 (non-A) IF deck in it.
> Are the IF decks interchangable?
>
> 73 de Gord, VE3EOS
>
> --
>
> Gordon L. Hayward, Ph.D., P.Eng.,
> Associate Professor, Biological Engineering,
> School of Engineering, University of Guelph,
> Guelph, Ontaro, N1G 2W1.
>
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