[Collins] Filter I.D.

[Dr. Gerald N. Johnson]

Being SSB filters they may have an asymmetrical passband. The would plug 
into those S-line using the F455FA21 filter for a wider but off set 
passband requiring using the tunable BFO and sideband selection would be 
a bit odd, but the impedance is more appropriate for transistor stages 
that tubes.

73, Jerry, K0CQ

On 3/29/2011 9:42 AM, David Pritchard wrote:
> Hi Jerry,
>
> Thanks for the info and quick response. The other Web resources that
> were suggested did not have this part number listed.
>
> These are, indeed, plastic case filters with no mounting studs. Given
> the source I obtained them from, it is likley they were used in a FDM
> microwave network. It seems as though they may be too wide for Ham
> applications, but if anyone is interested, let me know.
>
> Dave
> W9QL
>
>