More about DC (398)

1-07-1986 | The use of external mains voltage adaptors for cassette recorders, port- able radios, home computers, pocket calculators, and so on, is comm...

1-07-1986 | 104 Many clocks, both of the digital and the analogue type, make use of a 50 Hz timebase signal which is usually derived from the mains. In...

1-05-1986 | EE May 1986 60 HIGH-POWER AF AMPLIFIER 1 Here is an amplifier that meets the demand for good quality sound reproduction at very high sound p...

1-02-1986 | EE February 1986 Mains-operated NiCd chargers are in plentiful supply, but a NiCd charger that operates from a car battery and enables fast...

1-01-1986 | I 00 Moreover, the 1537A is de- signed for a high slew rate, resulting in low transient inter- modulation and a wide bandwidth, so that it c...

1-12-1985 | audio-controlled loudspeaker monitor What started out simply as a universal audio-controlled switch for an active loudspeaker has grown into...

1-07-1985 | elektor July/august 1985 Microphones, unfortunately, produce onlyasmallsignalandthey,therefore, require a special pre-amplifier to boost the...

1-07-1985 | The active rectifier proposed here is based on the property of an oper- ational amplifier that its output cannot become negative if its powe...

1-07-1985 | 10141.41 video amplifier for B/W television sets It appears that the use of portable, mains operated television receivers as monitor in a co...

1-07-1985 | Not so long ago, when semiconduc- tors were still quite expensive, it paid to make a transistor serve more than one function. Although this...