Found in the June 1987 issue of Radio Electronics magazine, this circuit uses well-known CMOS components. The circuit has a CMOS amplifier stage that drives a small speaker.
This oscillator can be used to produce signals ranging from a few kilohertz to approximately 10...
This indicator circuit used and game machines (arcades) to indicate that the machine is being...
) This interesting circuit of 18 multiplexed LEDs was found in the February 1992 issue of Radio...