JFET Curve Tracer Problem

[buzzbox]

Hello All,

I have tried everything to get this circuit to work, but it just won't cooperate. I put it on a breadboard and used myDAQ as a function generator and it worked just fine on an old Tektronics scope. Why won't this puppy run under Multisim? The URL for the design is: simple-circuit-turns-scope-function-generator-jfet-curve-tracer

Thanks,

-Barry

[buzzbox]

Correction: h

---

@buzzbox wrote:

Hello All,

I have tried everything to get this circuit to work, but it just won't cooperate. I put it on a breadboard and used myDAQ as a function generator and it worked just fine on an old Tektronics scope. Why won't this puppy run under Multisim? The URL for the design is: simple-circuit-turns-scope-function-generator-jfet-curve-tracer

Thanks,

-Barry

---

 Correction:    http://electronicdesign.com/displays/simple-circuit-turns-scope-function-generator-jfet-curve-tracer

-barry

[Tien_P]

Hi Barry,

Can you post your Multisim file, sometimes there is something in the file that is causing the problem.

[buzzbox]

Hi Tien,

Thanks for your help. Here's the file.

-Barry

[Tien_P]

Hi Barry,

It looks like the problem is R1, move it around and you will see the problem.

I replaced the Tektronix scope with the 2-channel, the B/A button is easier to access.

[buzzbox]

Thank you Tien! It's always the simple things....doh!

-Barry