xaos wrote: > Hello Everyone, > > I have been running simulations of different parts of the Fury Interface > board. > > Here are the results so far. > > http://www.darksmile.net/ee/index.html > > Your feedback is most welcome. > > -George > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > George
In the JFET frequency doubler: 1) Surely the 50 ohms should be is series with the the voltage source V3 for the simulation? 2) Usually a 1:4 impedance ratio step up transformer on the input is about right with a similar transformer used to step down the output (perhaps an even higher impedance ratio transformer (8:1, 9:1?? may be better). The maximum turns ratio depends somewhat on the maximum allowable drain voltage swing which in turn is limited by the drain supply voltage. In the voltage offset circuit: 1) The junction of R9 and R12 should be connected to the offset source (+5V??). I dont understand what the 7812 does in this circuit. Isolation amplifier looks OK. Bruce _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
