Elektor Team (9512)

1.07.1989 | 10 011 GENERAL INTEREST Battery-operated equipment can work on one set of batteries for a long time nowadays. But if it is left on inadverte...

1.07.1989 | 012 The TL496 is an is that is intended to produce a nominal 9-volt, that is 7-10 V, supply voltage from a variety of sources. This sup- ply...

1.07.1989 | 013 TEST & MEASUREMENT ABS / RMS / LOG CONVERTER The converter is specially intended for use in audio applica- larly suitable. The is derive...

1.07.1989 | 014 AUDIO & HI-FI The proposed mixer is designed around four current-driven transconductance amplifiers contained in a Type SSM2024 from Pre...

1.07.1989 | 015 COMPUTERS The "64 Kbyte RAM extension for msx computers"(Ref. 1) can house moms, but there is a small problem. To keep the board lay- ou...

1.07.1989 | 016 RADIO & TV This squelch circuit is simple, universally usable and provides a large enough gain to enable it being incorporated in the au...

1.07.1989 | 017 48 MHZ CMOS OSCILLATOR Crystal oscillators using digital gates generally do not generate frequencies above 30 MHz, because the necessary...

1.07.1989 | SIMPLE TEMPERATURE INDICATOR For the absolute measurement of tempera- tures a thermometer is indispensable. There are, however, many situati...

1.07.1989 | 019 BUCKET BRIGADE DELAY LINE Although bucket-brigade devices (asps) are not in the same limelight as many other components, they do exist a...

1.07.1989 | 020 FAST ENVELOPE SAMPLER RADIO & TV When a signal is being amplitude-modulated, constant moni- quency does not exceed half the carrier freq...