[Milsurplus] Narrow AM mech filter ?

[Dennis DuVall]

On my R-390-A I find that the 2 kHz filter used when receiving AM voice gives severely restricted but still intelligible  reception.  Wouldn’t want to use anything much narrower.

Dennis D.  W7QHO
Glendale, CA

*********************
> On Jan 31, 2016, at 7:04 PM, Hubert Miller <kargo_cult at msn.com> wrote:
> 
> Speaking of mechanical filters, what would be the narrowest one for AM voice and CW working?
> As specifically, in the TR-9 trans-receiver. I think the filter in it is wider than it has to be. There is
> only one, one-size- fits-all  filter in the set. 
> tnx -
> Hue Miller 
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