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 is from a 1967 RCA documentation. Components can be replaced with modern equivalents. The...
Kinescopes are no longer found on modern video monitors and televisions. However if the reader has...
The frequency of this astable depends on the capacitor that can be changed over a wide range of...