biasing jfets taking meters impedance in account

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biasing jfets taking meters impedance in account

Postby jimiguitar » 09 Dec 2014, 00:30

when measuring jfets for biasing do i need to take my meters impedance 10 meg into account and add that to the circuit
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Re: biasing jfets taking meters impedance in account

Postby grrrunge » 09 Dec 2014, 06:53

jimiguitar wrote:when measuring jfets for biasing do i need to take my meters impedance 10 meg into account and add that to the circuit

If you're measuring the transistors in-circuit, i would say no. Unless your bias network introduces an impedance large enough to make the extra 10M in parallel significant ;)
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Re: biasing jfets taking meters impedance in account

Postby jimiguitar » 10 Dec 2014, 05:19

thank you for the the reply i got confused i thought my meter might be effecting it but it depands were your meter probes measure where where your negative and positave they get 2 different readings that depends
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