This circuit was found in a 1968 General Electric documentation. It has an input impedance of 2 M ohms and excites a load of 16 ohms. The integrated circuit of the time is the PA237.
The purpose of this circuit is to find two resistors with very close values for critical...
The Variable Frequency Oscillator (VFO) shown in the figure can generate signals in a frequency...
This zero crossing switch was found in the 1980s ON Semiconductor thyristor manual. Semiconductors...