| Ni-Cd batteries are now used in so much everyday equipment that most households need at least one suitable charger. The one presented her...
More about Current (240)
| What is the ripple voltage across the buffer capacitor? What is the level of the peak current through the rectifier diodes? The values of...
| Following the discussion in our previous issue on the measurement of voltage, this month's instalment deals with the measurement of curren...
| The indicator is intended to display the clock frequency of a personal computer HO 1133 HDN 1133 (pe) in megehartz. It consists of two com-...
| A monostable relay has two states: operative when a large enough curreut flows through its coil and quiescent when no current flows. A re...
| The "portable battery charger" described earlier in this supplement may be extended by a current source that ensures a constant current t...
| The electronic antenna selector is intended to switch between two FM antennas by means of a legte signal.
| A portion of the current-voltage characteristic of certain devices, such as the thyristor, the tunnel diode and the magnetron, has a negati...
| The TDA1522 from Philips Components is a preamplifier chip for tape and cassette recorders. The circuit presented here is remarkable for...
| A conventional current gain tester is too unreliable for measuring and comparing the d.c. gain of power transistors because it fails to se...