| The monitor is a handy aid in cam and is particularlv suitable for radio amateurs who power their equipment from a car battery.
| The monitor is a handy aid in cam and is particularlv suitable for radio amateurs who power their equipment from a car battery.
| Small wind powered generators are useful devices for people dependent on battery power, such as caravaners and yachtsmen. Commercial produc...
| This circuit, a. d.c.-d.c. converter, is intended to charge environment-friendly batteries in and environment-friendly way. lt is based...
| The tester checks whether a transistor, n-p-n as weIl p-n-p , works or not. If it does. the buzzer emits a squeak.
| There is a problem if you want to use a car battery to power a circuit which requires a symmetrical supply voltage. Having abandoned the i...
| The power that can be obtained from a standard car radio amplifier operating from a 12 V car battery is 5-6 W, which (for many listeners)...
| The circuit shown in here has been designed to protect (expensive) high-power resistors against overheating. Very high power resistors (...
| In this instalment, the power Inverter will be discussed. Note that this requires the car battery to be in good condttion. since at full...
| This nickel-cadmium (Ni Cd) battery charger is capable of charging up to eight cells individually. The power semiconductors needed to acco...
| Although newer types of solar cell have come to the fore recently, amorphous cells are bound to be with us for some time to come, mainly...