[HBQRP] Chebyshev 5-element High-Pass filter (BCB Filter)

[Piatt, Darwin]

During our get together this past Saturday, the discussion turned to how
to make (build) a BCB filter to keep KFAB out of the Pixie, here is a
link to a site that used to sell a kit for it. It has 3 caps and two
coils.  

http://www.indianapolis.net/QRPp-I/index.html 

-------- Description -------------
The 3.3 uH inductors were build using 26 turns #26 AWG wire wound on
T50-2 cores. Junk box ceramic capacitors were used to build this 5th
order high pass filter. The filter should be used with a 50 ohm
impedance at both ends. The 160 meter band is relatively unaffected. The
attenuation is not very high in the upper part of the BC band and this
filter is therefore not suitable for all BCI applications
------------Drawing   ---------

      .0022uF    .001uF        .0022uF
>-----|  |-----o-----|  |-----o-----|  |----->
               |              |
               #              #
               #              #
               |     3.3uH    |
             (gnd)          (gnd)

If you have trouble with this drawing, just send me an e-mail off list
and I will send you a little word document with a better drawing.
Try it, it works with my 80 meter pixie.. I built mine inside an Altoids
Tin.

Happy building. 73's

Darwin (Dar) Piatt - W9HZC
Midwest HomeBrewer's and QRP Group
http://www.qsl.net/hbqrp