This circuit found in an American documentation from 1964, alters the duration of a pulse and can operate at frequencies up to 10 MHz. The transistors are from that time.
This circuit is from an Italian publication from 1988, but it can be assembled today because the...
This low frequency sinusoidal oscillator was obtained in documentation from the 1970s. Operational...
This conventional astable multivibrator circuit with operational amplifier can be found elsewhere on...