This circuit was found in a 1967 Electronic Design. The FET is from that time. Capacitor C is determined by the frequency of the signal worked.
Found in a 1970s documentation, this mini-organ toy circuit makes use of an integrated circuit from...
This circuit is suggested by the National semiconductor and is based on an increased power...
This monostable with the 555 is triggered by TTL signals and provides TTL output signals. The...