This version of triac control is from a 1968 documentation. The circuit uses components from the era that can be replaced with modern equivalents.
We found this circuit in a Hands-On Electronics from the 90s. The circuit must be connected to an...
Found in old documentation, this circuit applies to almost any common operational amplifier or...
This circuit can be used to power loads up to 5 A and the transistors must be mounted on large...