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, unlike the previous one (CIR12983) has the values of the components. The operational admits...
This circuit, with the assembly in a contact matrix, was found in a publication from the 90s. The...
This 800 Hz sinusoidal oscillator was found in a 1970s American documentation. The transistor...