[Collins] 75A-3 Filters in a 75A-4

[Glen Zook]

Actually, you don't have to do any modifications to
the 75A4 to use different filters.  Just wire them
into a 9-pin "miniature" plug.

I do know that the R390A filters work fine in the
75A4.  I use one of the 8 KHz wide ones for AM.  Fair
Radio (Lima, Ohio) used to have quite a few of these
for sale.  But, people pretty much "bought them out"
for things like using the filters in the 75A4, 75A3,
and 75A2A receivers.

Glen, K9STH


--- Jim DiMauro <radio6146 at yahoo.com> wrote:

I know that they're quite different physically, but if
they're electrically equivalent I would do a
reversible mod to install a 6 KHz filter from a 75A-3
in an 'A-4.

Glen, K9STH

Web sites

http://home.comcast.net/~k9sth
http://home.comcast.net/~zcomco


		
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