In the figure we have a circuit in which two moving bar/dot indicators are connected together to increase the number of LEDs. The circuit is from a Radio Electronics from October 1980.
This circuit was obtained from the November 1989 issue of Radio Electronics magazine. The circuit is...
This simple digital frequency meter using CMOS circuits reaches 5 MHz frequency. Input signals are...
We found this circuit in the 1960 Mullard transistor manual. The transistor is made of germanium....