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 obtained in a Popular Electronics of the 90s. The circuit is compatible with...
This is a circuit that appears several times in this section and in articles. It is a preamplifier for...
Found in a Hands On Electronics of the 80s, this circuit makes use of an integrated circuit of the time...