SimpleX Mark II 80/40m Receiver

 
 
 

 

 

 

 

 

 

 

 

 

 

 
  This receiver is known as the SimpleX Mark II receiver.

There was a previous version but numerous improvements have been made to this design.

What compelled me to build this receiver is that is utilizes a crystal filter for the I.F. strip.  I had not tried this technology prior to building this receiver.

Once again, amazing performance for such a basic technology.

 

 

Schematic PDF Format

 
 
 
 

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