We found this circuit in the March 1999 issue of Electronics Now magazine. The indicator used is an analog type. The values indicated depend on the calibration.
This circuit from March 1984 Radio Electronics is intended to allow the use of an oscilloscope to measure...
The circuit in the figure uses the four current amplifiers of the LM3900 to generate a sawtooth signal...
This amplifier was found in a technical documentation from the 1970s. The circuit uses 2N2218...