This battery-powered micropower supply was shown in Radio Electronics magazine in 1991. The maximum current is 170 mA. and the integrated circuit is the MAX655 from Maxim.
This small audio amplifier can be used with microphones and other audio sources. The circuit can...
LEDIL provides through Mouser Electronics a series of lenses for use in greenhouse horticulture....
This circuit suggested by Motorola can be used as LED high frequency modulator. One possible...