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Stuart,
One mixer that is shown in W1FB's QRP Notebook is CA3028A as a balanced
mixer (i.e., not doubly as with NE602). Other mixers in this book use
dual-gate MOSFETs.
Chuck Carpenter, Point, Rains Co., TX - EM22cv, RARA #3, NETXQRP #1
ARCI #5422, QRP-L #1306, SOC #57, Six Club #201, SMIRK #6275
NETXQRP Club Website – http://www.angelfire.com/tx4/netxqrpclub/
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