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

[Veenstra, Lester]

"The RF Connection" in Gaithersburg MD has the MB connectors and cable
that can be assembled to make MB/MB jumpers. They also have MB to other
coax connector adapters

Full Name:      Lester B Veenstra 
Job Title:      Communication Sys Des Engr Sr Stf 
Department:     6L01 Site Operations Collaboration and Reach-Back
(SOCAR) 
Company:        Integrated Systems & Solutions 

Business Address:       Lockheed Martin IS&S 
Room: 122 MailDrop: 2R 
7100 Standard Drive 
Hanover,  MD 21076 
Telephone:   +1+410-796-4001 

                           843-1602(r) 


         US Cell            +1+240-425-7335 
         UK Cell             +44+(0)7716-298-224

-----Original Message-----
From: r-390-bounces at mailman.qth.net
[mailto:r-390-bounces at mailman.qth.net] On Behalf Of ELDIM
Sent: Wednesday, January 11, 2006 5:44 PM
To: Barry; r-390 at mailman.qth.net
Subject: Re: [R-390] Re: Looking for a C adaptor

Hello Barry & Crew,
What I believe that you are looking for is a mini BNC which is
affectionately known as a Type MB Connector or in your case is an  MB RF
Adapter.  Then there is the MALE or FEMALE gender which may not be
politicially correct and so, a Male would be called a "Plug" and have a
Pin,
and the Female would be the "Jack" and have a Socket.  I believe that
AMP or
AMPHENOL made these adapters. They are rather scarce and I'm sure that
they
are no longer manufactured, unless someone like PASTERNACK has
resurrected
tham and had a batch made at their overseas plant. So if any one has any
PART NUMBERS, I'd be happy to run them and see what tyurns-up.
73,
Glen Galati,
KA7BOJ
Tacoma, wa.
eldim at att.net
----- Original Message -----
From: "Barry" <n4buq at aol.com>
To: <r-390 at mailman.qth.net>
Sent: Monday, January 09, 2006 8:44 AM
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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