This logic gate that increases the duration of input pulses was found in a NASA documentation from 1966. Transistors can be replaced with current types.
This is the basic operational amplifier configuration for gain 10. R2 can be changed to other...
This circuit was obtained in a 1988 publication, but it can be assembled very easily today, as all...
This circuit was found in a 1966 EEE. Transistors support modern equivalents and the waveforms are...