This circuit was found in the August 1972 issue of Radio Electronics magazine. The circuit generates 4 types of signals as can be seen in the diagram. The maximum frequency is around 20 kHz.
We found this circuit in the National Semiconductor Linear Applications Handbook of 1994. The...
The purpose of this circuit is to allow common analog multimeters to measure low resistances, on...
This circuit with losses of 20 dB at 350 Hz was found in older documentation, but it applies to...