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

[Dan Merz]

Barry,  I was never able to get these from Fair.  I don't think they have
them.  There was one source selling them on eBay for a while and I think
they finally drifted down to about$10-$15 there.  They are avaiable new from
RF Connection for $20,  Tech Line 301/840-5477 Order Line 800/783-2666,
Gaithersburg, MD,   MBfemale to BNCfemale,  lead courtesy of Roy Morgan with
follow up direct contact with them.  I never bought any of these and
satisfied my need another way with a small junction box using mini MB female
connectors (available from Fair) AND BNC connectors.  Dan

-----Original Message-----
From: r-390-bounces at mailman.qth.net [mailto:r-390-bounces at mailman.qth.net]
On Behalf Of Barry
Sent: Monday, January 09, 2006 8:45 AM
To: r-390 at mailman.qth.net
Subject: Re: [R-390] Re: Looking for a C adaptor

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

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