This bargraph circuit was found in the January 1986 issue of Radio Electronics magazine. It is based on the well-known LM3914 and has two of them in cascade driving a good number of LEDs.
This circuit was obtained in an English magazine from 1978. We can easily assemble it because all...
This 6-transistor transistor radio was manufactured in Japan in the 1960s. It is a portable...
This conventional application of the 555 as monostable was found in a technical documentation from...