More about power supplies (351)

1-12-1995 | 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.

1-12-1995 | Occasionally, problems occur when a power supply does not maintain its output voltage owing to a change in load as when an amplifier is...

1-12-1995 | A power supply is described whose output can be switched to the six most common output voltage requirements and which can provide a contin...

1-11-1995 | 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...

1-12-1994 | Transistorized RF power amplifiers and mobile transceivers require mains power supplies capable of supplying very high currents while rema...

1-11-1994 | The phantom power supply enables the power required by a guitar's integral preamplifier to be conveyed via the signal cable.

1-09-1994 | SWITCHABLE A.C. SUPPLY Many experiments in the electronics workshop require a.c. voltages simply by setting the alternating supply voltages...

1-07-1994 | Building an LCD module into an equipment (for instance, a voltmeter into a power supply) is often not straight forward, because its supp...

1-07-1994 | In many advanced electronic circuits, speed and accuracy are of the utmost importance. It is sometimes overlooked that to achieve these,...

1-07-1994 | In these days of integrated voltage regulators, many constructors will enjoy this oldfashioned power supply built from discrete componen...