[Boatanchors] Wanted: Blackhawk Engineering Passband Filter

[Glen Zook]

Heathkit used a similar Blackhawk filter in the Comanche receiver.  Part number 404-12.  It may be a little wider than 3 kHz (I haven't measured them) but finding one from an old MR-1 Comanche should be fairly easy.

Glen, K9STH

Website:  http://k9sth.com


--- On Fri, 4/24/09, W8KZW <w8kzw at arrl.net> wrote:

Saw a neat construction article in an older Orr Handbook for a glow-in-the-dark, homebrew, single conversion 80 - 10 receiver I'm thinking of building.  It spec's a Blackhawk Engineering Company bandpass filter in the IF.  3 Mc center frequency, 3kc passband if I recall.
 
Anyone have one?  Something that might work?