Quote:
Originally Posted by vinrads
I have been an avid SW listener for years , and would like to hear from people who have built a successful product detector .
I am using a Eddistone 640 , and a GEC BRT400 receiver.
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You have 2 receivers with different IF's (frequency), if you choose a design ensure it can incorporate switched IF frequency. You may be able to get some ideas from the Eddystone receivers that had product mixers fitted, the EA12 for instance , 940 , 840.
There used to be a kit sold in the states for the collins R390A which was quite succesful , this was based on modern components and had good reviews.
Mike