Found in Unitrode documentation, this oscillator uses some unusual components today such as PU and the 3 M potentiometer. The power can be made with voltages around 15 V.
This circuit indicates the resistance of the skin of those who hold the electrodes. RV1 makes the...
This circuit makes use of an old operational and matched transistors. The circuit can be...
The circuit shown is from National Semiconductor, having been found in the 1994 Linear Application...