We found this circuit in a 1991s PE Hobbyst Handbook. The circuit fires 10 LEDs that can control incandescent lamps according to their maximum current.
This RF monitor or field strength meter can use instruments from 100 uA to 1 mA full scale. The...
This amplifier for automotive use was found in the SGS manual of linear integrated circuits of...
This SCR circuit can operate on frequencies from 1 to 20 kHz. We found it in an American...