This circuit was found in 1960s Radio Electronics. The circuit uses components from that time. The triac is according to the controlled load. The sensor is a common LDR.
Found in RCA documentation from the 1960s, this 60 V regulator has a 100 V input and a current of 1...
Found in an 80's documentation this circuit uses an integrated from the uncommon era today. Other...
We found this circuit in an English publication from 1980. It provides a logical output signal when...