This circuit was suggested by a 1967 General Electric manual. The waveforms of the generated signals are shown next to the diagram. Equivalent modern SCRs can be used.
When the sensor connected to points A and B is activated, removing the ground from the base of Q1...
This oscillator was found in the 1994 National Instruments Linear Applications Handbook. The...
With the circuit shown in the figure, the frequency of a 5 MHz oscillator controlled by crystal can...