This sequential circuit of LEDs was found in a Popular Electronics from the 90s. The circuit can be programmed and an adaptation consists of using optical couplers to drive power loads.
The integrated circuits used in this oscillator are not very common today, as we obtained it in...
This circuit is suitable for applications in medical, research and industrial equipment. The...
This amplifier with the LM1098 and LM101 by Motorola from a 1990 manual can be designed with more...