[Premium-Rx] Synchronous Detector for WJ and Harris receivers

[Clemens Paul]

Hi,

>I am looking for a good design for a 455KHz Synchronous Detector for my
>WJ-8718 and Harris RF-590A.  I have seen several good articles in the
>past but they all use chips like the MC13022 or Exar that are
>discontinued and not readily available.  Rather than spend $600 bucks on
>a SE-3 I would like to role my own.  Any ideas?

Try the product detector by KK4PK.
I use it with a R390A and R&S EK 07 (with switchable IF's).
You can specify any IF around 400-500 kHz.
Don't remember the price,but it was really not expensive. 

Regards
Clemens
DL4RAJ