This circuit was taken from old American documentation. The transistors used make it possible to control a motor with up to 2 A of current. They must be equipped with heat sinks.
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This crystal-controlled 1000 kHz oscillator was found in 1980s American documentation. The...
This circuit using a SIDAC as a relaxation oscillator was found in the ON Semiconductor manual for...
The configuration shown is from the National Semiconductor Linear Applications Handbook. The...