"mazerom" wrote in message
oups.com...
i have 2 inputs with frequencies in the 450khz ranges.i need a
differnce output.
any design circuits for either transistor or diode based mixer?thanks



Hi Mazerom

have you looked at Mini Circuits's application notes on mixers?

http://www.minicircuits.com/appnote/mixer1-2.pdf

Jerry