[usa2003ardf] update to 80m ARDF RX

[Kuon & Dale Hunt]

   I have a parts update for my 80m ARDF receiver design that
   many of you purchased kits for in Georgia this spring.

   Capacitor C23 (the coupling capacitor between the mixer and
   the audio preamp) should be 10uF instead of 1uF.  This
   will greatly improve the audio response below 3 kHz.  It
   still works with the original value, but it sounds a lot
   better with the larger cap.

   I don't have a complete list of those who purchased kits -
   if you know someone not on the distribution list, please
   forward this on to them.

   Meanwhile, I have received another batch of 20 boards, and
   will be putting together some more kits in the near future.
   Price for the "board kit" (circuit board and all parts that
   go on it, does not include case, panel controls, jacks, etc.)
   will probably be $20 to $25.  I'll also be making some with
   crystal control for Scout troops or other beginner groups -
   no worry about it getting bumped off frequency by mistake!

   Let me know if you want me to reserve one or more kits for
   you.  And, if you have already put your name on the waiting
   list, it wouldn't hurt to reconfirm your request.

      Thanks,

            - Dale WB6BYU