We found this version of the automotive tachometer in a 1980s publication. Variations from other sources appear elsewhere in this section. The indicator is a 0 to 1 mA milliammeter.
This circuit provides a linear attenuation of a signal up to 100 dB. The circuit operates with...
Using a CA3059 this circuit was found in the July 1995 Electronics Now magazine. The triac must be...
The circuit shown in the figure has an output voltage rise time of 0.22 ms and an input time...