This circuit produces a pulse when the voltage in the regulator exceeds a certain value depending on the components. PUT is not a common component today. The circuit is from a 1970 EEE.
Originally created to feed the filaments of a 12AX7 as an audio preamplifier to eliminate the...
We found this circuit in a 2004 documentation. The circuit consists of a standard lamp for testing...
Found in an Electronic Design from the 90's, this circuit generates signals with a controlled...