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Old 2nd July 2011, 09:57 AM   #1
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Default F5 with lateral mosfets


I have been trying to make the F5 work with lateral mosfets. So far I cant biased them. What can be wrong? Here is the schematics I am using. Actually the voltages are +/- 30V.

Thank you.
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Old 2nd July 2011, 12:43 PM   #2
Itsmee is offline Itsmee  England
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What voltage do you have across R3 & R4?

+/-30V is probably too much for the little JFETS, datasheet says 25V max
Old 2nd July 2011, 01:00 PM   #3
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Nevermind, I have changed mosfets to IRF type, now its working allright.

Moderator please delete this thread.

Thank you.

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