Found in a 1965 Electronic Design, this high voltage circuit uses period transistors. Its purpose was to excite Nixie display tubes common at the time.
This monostable with the 555 is triggered by TTL signals and provides TTL output signals. The...
This circuit works like a solid-state contactor. We find it in General Electric documentation from...
This audio mixer was found in an old American documentation. The potentiometers are 1M and the...