This counter was found in the November 19983 issue of Radio Electronics magazine. The power supply can be between 3 and 12 V typically. The counting speed depends on C1.
This circuit appears with variations in other points of this section. This version is from...
With this circuit general purpose diodes and rectifiers can be tested with ease R has 100 ohm for...
The INA185 integrated circuit from Texas Instruments is a current sensor that can operate with...