[Boatanchors] Collins 3.1 KC filter question

[Jim Wilhite]

Collins made those filters.  At one time I had a .5 a 1.5 and a 3.5 that 
plugged into the 1st IF tube socket in place of the tube.  They used the 
mechanical filter Collins made and were designed for the SP 200 and HRO 
60.

Jim
W5JO

>
> Good Morning All,
>
> Collins made a filter for Hammarlund which is designated
> "MFA-3 3.1 KC filter". Does anyone know which piece of
> Hammarlund equipment this was for? Google was not my friend
> in this inquiry.
>
>
> Brian Harris
> cell 214-763-5977
> email cosmophone at yahoo.com
>
>     I will check a Hammarlund catalogue I have but I
> believe this was for the SP-600-JX.  Hammarlund had a
> mechanical filter adaptor which plugged in one of the IF
> sockets. By memory it had two tubes and the filter in it.
> The filter was not switchable.
>
>
> --
> Richard Knoppow
> Los Angeles
> WB6KBL
> dickburk at ix.netcom.com