Found in the May 1988 issue of Radio Electronics magazine, this circuit is sensitive to small variations in input voltage. The power supply must be symmetrical.
We found this circuit in the November 1985 issue of Radio Electronics magazine. It uses TTL...
The basis of this circuit is a CA3130 operational amplifier. The transistor can be BC548, and the...
This circuit switches off a load in case of excess current acting as a fuse. The circuit is from a...