Name: PSEC Special With Full SEC No1 @StifflerDr
Uploaded: 2011-10-31T01:29:31-0400
Duration: 8 min 17 s
Description: This is a PSEC using the full transistor so we obtain amplification and feedback. The unit needs to initially charge the power rail cap and start the feedback loop. Tuning is VERY sharp and drive signal does change throughout a 24 hour period.

Uploaded June 2018 | Updated September 2026, 1 hour ago

Showing the Stiffler Loop does depend on the two 1N4148's. A series LED can be used when placed in series with the diodes, but board will not light if LED is placed just to complete the board circuit.

How to measure srf or Spatial Resonant Frequency of a Coil