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.
Short duration pulses can be obtained with the relaxation oscillator that uses common transistors and is...
This circuit is from a Radio Electronics from August 1992. The transistor used allows the control of...
This circuit was found in a publication by National Semiconductor. The problem for designers who...