This sophisticated moving bar indicator circuit with the LM3915 is from a Radio Electronics magazine from May 1985. The two-channel circuit includes the power supply.
This circuit was obtained from an English magazine from 1977. It is a toy musical instrument that...
The presented circuit uses common transistors that can be the BC549. The maximum amplitude of the...
This is the receiver for the previous circuit, also found in 90s Radio Electronics. The circuit...