This circuit lets an external 12V SLA battery power a camcorder which normally has an inbuilt 7.2V battery. Such batteries can now be very difficult or expensive to obtain for earlier model camcorders ...

The global regulatory environment surrounding the legislation of external power supply efficiency and no-load power draw has rapidly evolved since the California Energy Commission (CEC) implemented ...

So you have tested everything from the motherboard to the floppy drive. Still having problems? Have you tried testing the power supply? This Daily Drill Down by Faithe Wempen gives you the scoop on ...