The frequency of this Pierce oscillator, found in 1969 documentation, depends on the crystal. The current in the drain is about 500 uA. Crystals from other frequencies can be used.
This circuit was found in documentation from the 1980s. The control pulses are obtained by an...
This high current regulator for TTL circuits was found in an old French documentation from the...
This circuit is an alternative to the previous circuit. We found it in the same article in the...