Ton Giesberts (354)

1-07-1993 | The rectifier is intended to improve the bandwidth of most digital multimeters. It is based on a halfwave rectifier in a traditional set-...

1-07-1993 | Active loudspeakers offer the only way of obtalning good bass reproduction from inexpensive or small enclosures. The design described doe...

1-07-1993 | Designing an active loudspeaker system is a complex (but fascinating) matter because each drive unit needs its own output amplifier and c...

1-06-1993 | Making an audio signal visible on a display is something that appeals to many audio & hi-fi enthusiasts. Most commercial audio equipment...

1-05-1993 | Computer-controlled hi-fi equipment is no langer a novelty. Such apparatus has given rise to special analogue lCs becoming available that...

1-04-1993 | Most audio output measurements are concerned with the voltage delivered across the loudspeaker by the output stage. If the loudspeaker...

1-03-1993 | It is often next to impossible to determine the acoustic behaviour of a home-built loudspeaker enclosure other than by ear. The meter desc...

1-02-1993 | When a variety of audio equipment (CD drive, D-A converter, CD player, DAT recorder) is connected together, jitter may often be present on...

1-01-1993 | Usually, the -3 dB (and -20 dB) roll-off points on the frequency characteristic of a filter are found with the aid of an oscilloscope or a...

1-12-1992 | One advantage bipolar opamps have over FET types is that their input noise level is appreciably lower. However, when abipolar opamp is us...