[R-390] Re: Looking for a C adaptor

[Barry]

Does anyone know if/where the mini-BNC to BNC adapters are available (the
kind used for the IF output "jack").  Does Fair Radio sell them?

Thanks,

Barry - N4BUQ

>
> Tom,
>
> I like your twin-ax to BNC adaptor.  Here is a description of one I
> inherited.
>
> My R390A came with an adaptor that was made by the previous owner and
> it keeps the balanced input ungrounded.  It consists of a 1 inch cube of
> double
> sided circuit board pieces soldered together. One side of the cube is open
> with a cover of thin metal like is used for magnetic shielding. One side
of
> the box has a female panel mount BNC connector. Inside the box is a two
> hole ferrite balun core with windings;  a primary and a secondary.  I
> haven't checked the ratio of the windings but I presume them to be 1:1.
> Secondary is connected to two insulated  pins from the box spaced  to fit
> the
> input to the radio.  It works very well and doesn't require any difficult
> to find parts.
>
> Gary L Webb NI9V