[Collins] WTB 1.5 or 1.8 crystal filter for the 75S-3B or C

[Dutch Maurer WB7DYW]

I can't believe you actually posted that ?????

73's Dutch WB7DYW


--- On Mon, 6/30/08, Dr. Gerald N. Johnson <geraldj at storm.weather.net> wrote:

> From: Dr. Gerald N. Johnson <geraldj at storm.weather.net>
> Subject: Re: [Collins] WTB 1.5 or 1.8 crystal filter for the  75S-3B or C
> To: collins at mailman.qth.net
> Date: Monday, June 30, 2008, 6:53 PM
> On Mon, 2008-06-30 at 13:55 -0700, Dutch Maurer WB7DYW
> wrote:
> > I am looking for a 1.5 or 1.8 crystal filter for the
> 75S-3 B or C
> > 
> > 
> > 73's Dutch WB7DYW
> > 
> Only the 200 Hz filter was crystal, all the other
> bandwidths were
> mechanical filters.
> 
> And Y type filters that wired into earlier receivers with
> stiff wire
> leads added to the ends will plug into the 3B/C.
> 
> -- 
> 73, Jerry, K0CQ, Technical Advisor to the CRA
> All content copyright Dr. Gerald N. Johnson, electrical
> engineer
> 
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