I decided to build a colpitts oscillator using a jFET (2N3819): jFET colpitts oscillator

It seems to work fine @ http://www.falstad.com/circuit/ but when i try to build this circuit it does not work, any ideas?

Thank you in advance.

  • \$\begingroup\$ What voltage do you see on the drain? Ditto on the grid? (er, gate)? \$\endgroup\$
    – user16324
    May 15, 2016 at 20:22

1 Answer 1


Is transistor modeled in the simulator the 2N3819?

EDIT: https://www.fairchildsemi.com/datasheets/2N/2N3819.pdf

Sorry, for the not-too-insightful initial thoughts on your question. By the looks of the data sheet above, the transistor you're using operates on much larger voltages than the one in the simulator.

  • \$\begingroup\$ I don't think so, no. Thanks for the answer. \$\endgroup\$
    – Waffle Man
    May 15, 2016 at 17:37
  • \$\begingroup\$ edited my initial answer \$\endgroup\$ May 15, 2016 at 17:45

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.