I need circuits about lock in amplifier preamplifer circuits using dual jfets 2N6485 ,thanks
G guozhong Mar 31, 2013 #1 I need circuits about lock in amplifier preamplifer circuits using dual jfets 2N6485 ,thanks
S shrtrnd Apr 1, 2013 #2 So. Are you trying to copy the SR510 circuitry? Are you trying to repair the SR510? Or, are you trying to learn how to use the SR510?
So. Are you trying to copy the SR510 circuitry? Are you trying to repair the SR510? Or, are you trying to learn how to use the SR510?
