H. Bonekamp (119)

1-12-1999 | MicroClock have available 28-pin a generator IC Type ICS525, also called OSCaR (acronym for oscillator replacement), which may be used to...

1-12-1999 | It is often difficult to properly calibrate a temperature sensor since there is no suitable aid for doing so available. This article, which...

1-09-1999 | One of the most important parameters in modern motor vehicle management is the air-fuel ratio, since this affects the ‘cleanliness’ or...

1-07-1999 | If the wave-file player described in the February 1999 issue of this magazine is used as a programmable doorbell, it is, of course, handy...

1-07-1999 | AVR controllers have the unfortunate property of their data EEPROM being affected when the supply voltage drops below a certain level, whi...

1-07-1999 | Crystals for operation above 20 MHz are invariably cut to an overtone (harmonic), which may be the third, fifth, or seventh. In other word...

1-07-1999 | It sometimes happens that it is necessary for the contacts of a mains switch to be isolated or for the switch to be able to handle a large...

1-07-1999 | The LTC1062 is an integrated fifth-order low-pass filter that stands out by the absence of any d.c. error. This is achieved by keeping the...

1-07-1999 | Dimensioning and testing active filters for audio and measurement applications is not seriously good fun, in fact, many hobbyists seem to...

1-02-1999 | The wave file player is yet another circuit that offers the prospect of several hours of enjoyable tinkering. The PC and the soldering iro...