This circuit was found in documentation from Analog Devices from the 90s. The circuit uses components from that time, which are not common today. It serves as a reference.
) This interesting circuit of 18 multiplexed LEDs was found in the February 1992 issue of Radio...
This 1969 Philips documentation circuit makes it possible to control an engine through the sound...
This circuit can operate with 5 uV to 1 mV input signals from low impedance sources such as...