[Milsurplus] Collins 75A-4 Receiver Coverage

[Glen Zook]

They also had a kit for the R388/51J series.  I had forgotten about the one for the 75A-1.  The filters were at 500 kHz in the 75A-1 whereas at 455 kHz in the 75A-2, 75A-3, and 75A-4.

Glen, K9STH

Website:  http://k9sth.com


--- On Mon, 2/16/09, Marty Reynolds <cosmoline at aa4rm.ba-watch.org> wrote:

> From: Marty Reynolds <cosmoline at aa4rm.ba-watch.org>
> Subject: Re: [Milsurplus] Collins 75A-4 Receiver Coverage
> To: gzook at yahoo.com
> Cc: wa5cab at cs.com, "Al Klase" <al at ar88.net>, kk5f at arrl.net, milsurplus at mailman.qth.net
> Date: Monday, February 16, 2009, 7:24 AM
> Hey Glen u wrote
> 
> > Collins came out with a modification kit for the
> > 75A-2 which added the mechanical filters and that
> receiver was designated
> > the 75A-2A.
> 
> Collins had a mechanical filter back-fit for the 75A1 too. 
> Have one in my
> example.
> 
> Had a mech filter in a case electrically between two 6BA6s.
>  Same case
> plugged
> into a 6SG7 IF tube socket
> 
> If you want, I'll pull it from the A1 to get the call
> number. You probably
> knew this but forgot.
> 
> Note the  A1 that just served during another CX with a 32V1
> on it's left
> 
>    Marty