More about power (1010)

1-03-1977 | Using the new RCA G 5000 M gate turn-off thyristors an efficient, high-power DC/ AC inverter can easily be built.

1-02-1977 | Three terminal, IC, fixed voltage regulators are now commonplace, and most readers will be familiar with the LM309 and similar device...

1-07-1976 | Mechanical lap counters for m de! racetracks have a repu- tation for unreliability. They either suffer from poor contacts, or the mech...

1-07-1976 | This class B amplifier has a few characteristics that makes it stand out from the crowd. For one thing, not only is the final stage...

1-03-1976 | Most tuners with varicap front-ends require two supply voltages. One for the front-end and i.f. amplifier {usually about +12 V) and a t...

1-11-1975 | This `TAP-power` circuit has been specially designed for the TAP preamp system. It includes touch-controlled switches for turning the...

1-07-1975 | Many different methods are followed to generate mains synchronised pulses. This circuit employs an opto-coupler to give complete isolatio...

1-07-1975 | Many pocket calculators have a constant factor memory. If a 1 is stored in this memory, depressing the t key adds l to the number al...

1-07-1975 | Many amplifier designs, both do-it- yourself efforts and commercial cir- cuits, have the bad habit of delivering a more or less hefty switc...

1-12-1974 | This nomogram has been prepared by the editors in response to regular requests from readers. When the required output power...