More about power (1014)

1-01-1991 | Waste not, want not! Radio amateurs are a breed of electronics enthusiasts who like to see every milliwatt of their precious RF power arri...

1-12-1990 | It happens frequently that the output current of an operational amplifier is inadequate for the application as, for instance, whent a sma...

1-11-1990 | Before dealing with the construction of the PSU, this second and final instalment discusses the operation of the four modes in which the i...

1-11-1990 | The entire circuit shown can be built on the printed circuit board. The enclosure discussed later on houses the power supply the various...

1-11-1990 | This article describes a miniature medium-wave band receiver powered by a solar cell. The circuit is based on a single integrated circuit,...

1-10-1990 | Though a bitter disappointrnent, the failure of the quest was not yet an irreversible defeat. A remote chance lingered that the magie com...

1-10-1990 | Here is an all-purpose d.c. power supply tor symmetrical as well as asymmetrical use, and capable ot supplying high output currents and vo...

1-10-1990 | For the many readers who do not need hundreds of watts output from their audio hi-fi installation here is a modest 60-watt a.f. amplifier...

1-09-1990 | A conventional current gain tester is too unreliable for measuring and comparing the d.c. gain of power transistors because it fails to se...

1-07-1990 | It has been some time since we published a 200+ Watt power supply like the one described here. Capable of supplying up to 10 A (and more i...