[Boatanchors] Wanted: Blackhawk Engineering Passband Filter

Carl km1h at jeremy.mv.com
Fri Apr 24 11:54:13 EDT 2009


Shift the IF up a bit and use any of the Heath SB or HW series of 
filters. They are readily available and cheap on Ebay as may rigs get 
parted out. Ive even seen the PTO's for $10-15.

http://www.mines.uidaho.edu/~glowbugs/Heathkit%20SB_HW%20Filters.pdf

Carl
KM1H


----- Original Message ----- 
From: "W8KZW" <w8kzw at arrl.net>
To: <boatanchors at mailman.qth.net>
Sent: Friday, April 24, 2009 10:04 AM
Subject: [Boatanchors] Wanted: Blackhawk Engineering Passband Filter


> 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?
>
> Thanks.
>
> 73,
> Jeff
> W8KZW a t a r r l d o t n e t
>
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