Elektor Team (9512)

1-02-1989 | SCIENCE & TECHNOLOGirry Recognizing speech in noise by Dr William Ainsworth, Department of Communication and Neuroscience, University of Kee...

1-02-1989 | AM/FM VHF RECEIVER This compact, sensitive, communications receiver has a tuning range of 80 to 135 MHz, covering part of the VHF-low band,...

1-02-1989 | 56 EE February 1989 PRACTICAL FILTER DESIGN (2) by H. Baggott Each filter has its own typical properties and these can be laid down in a few...

1-02-1989 | 58 T E S T & MEASURING EQUIPMENT Thurlby PL310 QMD Thurlby are a well-established Cam- bridgeshire based equipment manufac- turer. Their inn...

1-02-1989 | 60 February 1989 VIDEO CARDS FOR PERSONAL COMPUTERS by H. Stenhouse In recent years a bewildering variety of video cards for PCs has come on...

1-02-1989 | 64 EE February 1989 TOUCH-KEY ORGAN A simple-to-build, inexpensive, two-octave organ with touch- sensitive keys etched on the printed circui...

1-02-1989 | Tweeters, the high-frequency drive units in a loudspeaker system are often dam- aged by a properly matched and rated power amplifier. This h...

1-01-1989 | FE, ,1989 FACSIMILE INTERFACE FOR ATARI ST by P. Neufeld DB9JG Are you interested in receiving weather charts and press photographs from all...

1-01-1989 | ,a„ay POWER SUPPLIES: AN OVERVIEW The UK power supply business is ex- panding in line with market needs. The total power supply market in...

1-01-1989 | 20 EE January 1989 MIDI CONTROL UNIT Q4 by H. van Bommel The MIDI control unit described here has been baptized `Q4" because it can quadrupl...