piclist 2017\09\11\151004a >
Thread: Help troubleshooting a JFET circuit.
face BY : Dwayne Reid email (remove spam text)

Hi there, Sean.

You are forgetting about current that flows through the gate resistor to Ground.  This is a J-FET, so the gate diode junction is forward biased if Rs is open.

Another possibility that Rs is very high value.  I haven't bothered to work out the math for the possible high value.


At 11:58 AM 9/11/2017, Sean Breheny wrote:
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-- Dwayne Reid   <STOPspamdwaynerspam@spam@planet.eon.net>
Trinity Electronics Systems Ltd    Edmonton, AB, CANADA
780-489-3199 voice   780-487-6397 fax   888-489-3199 Toll Free
Custom Electronics Design and Manufacturing

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Subject (change) Help troubleshooting a JFET circuit.

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