SB-104A 400Hz CW FILTER QUESTION

[Neil Morrison]

Amidon have a fairly useful sheet of notes and specs which may help you to
guesstimate how to do this.

Regards,

Neil

----- Original Message -----
From: "mike bryce" <prosolar at SSSNET.COM>


> glen...
>
> yes, you will need all the missing parts. there's nothing special EXCEPT
for
> the two toroids used to match the impedance of the filters.
>
> I don't know where you could find the toroids, but guess you could make a
> stab at winding your own.
>
> unlike the other heathkit radios. it's not a drop in upgrade
>
> Mike Bryce WB8VGE
>
> > From: Glenn <kd5hcl at YAHOO.COM>
> >
> > Just picked up a 400Hz xtal filter for my SB-104A, but
> > now I'm scratching my head. The board this goes on is
> > missing all the nearby associated components. Was the
> > cw filter option actully a kit containing all of these
> > other parts?
> >
> > How do I get from here to there?

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