We found this circuit in a 1996 publication. The circuit uses components that are still common. The timing depends on C1, which can be changed, and the triac can be of any type.
The L1 coil consists of 20 to 100 turns of fine wire in a cardboard box where plant specimens are...
This circuit was found in a 1980s documentation from the manufacturer of the integrated. The...
The circuit also works as a synchronized rectifier and balanced modulator. We found it in the...