This very low consumption circuit can be powered by a solar cell. The time indication is given by a microammeter.
This power supply, found in 2002 documentation, uses fixed 1 A regulators for the power output. The...
This infrared emitter (pulsating) can be used with several other alarm and remote-control circuits on...
The circuit output shown is compatible with CMOS technology. The transistor is 2N2222 and the...