This audio level indication system for microphones was found in Radio Electronics from the 90s. The components used are common today.
The New Microchip development board is targeted to designers who work with 16- and 32-bit PICs....
The circuit shown was found in the February 1994 issue of Electronics Now magazine. The circuit...
The circuit presented is suggested by Mullard (Philips) in an old manual. The circuit uses a...