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previous: Scott I tried your suggestion of higher s... -- 11/4/1999 9:50 PM view thread

Re: FET Electrical Performance

11/4/1999 11:33 PM
Jack
Re: FET Electrical Performance
quote:
"With the 18.6V supply, 10K drain resistor, 1K source resistor, no bypass cap and Vout = 1 Vrms, gain was 10 and distortion was 0.2% THD. Much better than the 9V supply performance."
 
 
Bingo! Removing the bypass cap also contributed to the lower THD. If you can crank the supply up even higher it will improve some more. Three batteries at about 28v might be even better if you need the headroom.  
 
regards, Jack