Skip to main content
7 events
when toggle format what by license comment
Jun 24 at 6:19 comment added Andy aka Why does your circuit use a 100 ohm resistor to bias the base?
Jun 23 at 23:04 comment added ndemarco I understand the theory reasonably well now, thank you. I have practical issues. The inductor is a crystal, which appears to be fully functional. If I drive it with a function generator, it resonates well at its nominal frequency. I measured the three resistors and both capacitors. All are good. I replaced the transistor and the two capacitors. Still, it does not oscillate. I tried breadboarding the oscillator, but do not have intuitive knowledge to tune it into oscillating.
Jun 23 at 1:15 vote accept ndemarco
Jun 18 at 9:33 history edited Andy aka CC BY-SA 4.0
added 195 characters in body
Jun 18 at 8:28 history edited Andy aka CC BY-SA 4.0
added 414 characters in body
Jun 17 at 21:17 comment added a360pilot Thank you for pointing out the function of the crystal in this circuit. Most comments before yours forgot to mention the inductive behavior of the crystal and were concerned about second-order effects rather than fundamentals.
Jun 17 at 14:57 history answered Andy aka CC BY-SA 4.0