More about power (1010)

1-06-1991 | VARIABLE A.C. POWER SUPPLY Stabilized and regulated d.c. power supplies are readily available in many shapes and sizes. By contrast, a regul...

1-05-1991 | The power circuit described in this article is used for obtaining a variable direct voltage source from the 50 Hz a.c. mains supply. The v...

1-05-1991 | Power to the bits and bytes! Here is the Mark-II version of the popular BASIC computer we published a few years ago. This time we present...

1-05-1991 | Over the last few years, a variety of low-power Helium-Neon (HeNe) laser tubes has founds its way in into the electronics surplus trade circ...

1-04-1991 | It is an unfortunate but well-known fact that measuring the active power of a mains-powered apparatus can be quite tricky. While non-reactiv...

1-04-1991 | The circuit diagram of the power supply shows that the semiconductor tester has an on-board step-up voltage converter that is powered from...

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...