More about psu (50)

1-07-2004 | Switched mode power supply units (SMPSUs) are popular but difficult to build oneself as well problematic when it comes to understanding thei...

1-09-2002 | This power supply unit (PSU) provides hum-free and stable operating voltages for valve preamplifiers and power stages. Negative bias voltage...

1-06-2001 | The OSCAR Stand-Alone MP3 Player described in last year’s September issue appears to be very popular with our readers. So popular in fact, t...

1-12-1999 | This rugged power supply is based on the popular LM338 3-pin voltage regulator. The LM338 is capable of supplying 5 A over an output volta...

1-07-1999 | Many radio amateurs will not fail to recall the chaotic situations that may occur during fielddays or contests, when several radios have t...

1-07-1999 | This compact 13-V/2-A power supply for ham radio rigs and other VHF/UHF portable PMRs is based on the STR2012/13 voltage regulator IC from...

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

1-10-1994 | A circuit is described tor continuously monitoring the various power supply lines in computers. It will also detect spikes (other than RF....

1-03-1992 | How do you know whether your precious laboratory/workshop power supply unit is still working to specification? How do you measure the para...

1-03-1979 | The printed circuit board has been completed and tested. It is working fine and now ready to fit into the case. But what about the power sup...