Found in a magazine from the '90s, this circuit uses an integrated circuit from the era that is difficult to obtain today.
This circuit is from Popular Electronics from the 90s. The integrated circuit is not very common...
This 80's circuit uses an audio amplifier to obtain a symmetrical source from a single source. The...
This circuit can be used in 0,5 to 37 V Power supplies and output currents up to 3 A. The...