This circuit was found in a 90s Signetics documentation. The circuit is switched based on components of the time.
This circuit detects a light window using two operating systems. The circuit is from a July 1992...
We found this circuit in Popular Electronics from January/February 1969. The circuit must be...
In this circuit of the 1980s, the T1 transformer has 30 turns of 28 primary wire and the secondary...