Elektor Team (9535)

1-10-1988 | 60 EE October 1988 Vin max. 20 V +5,7v ,40V f 10 nF 2 10 nF IC1 " 74 LS 00 TDB 7805 T BAW 76 UmI Uout nv lil • 10 pF I BAW 22 pFT I BAS 70...

1-10-1988 | EE 63 October 1988 THE SUPER CAPACITOR: OPERATION AND APPLICATION Power supply back-up capacitors with a capacitance between several tens of...

1-10-1988 | 66 EE 1988 ecoNTACT ENCODER AS DIGITAL The number of so-called autonomous, or stand-alone, applications found for microprocessors and microc...

1-09-1988 | EE September 1988 SELF-INDUCTANCE METER Measuring self-inductance reliably is notoriously difficult and inductance meters are, therefore, fe...

1-09-1988 | _,eptembe„x MICROPHONE PREAMPLIFIER WITH ACTIVE FILTER by S.G. Dimitriou When a microphone is used a good distance away from an amplifier,...

1-09-1988 | E.„...„9.8 DIRECT BROADCAST BY SATELLITE CONFERENCE 1988 PANDORA"S BOX TO BE OPENED SOON? Report of a two-day conference on direct broad...

1-09-1988 | EE September 1988 Most popular personal radios suffer from high current consumption, so that it is sensible to power them from rechargeable...

1-09-1988 | 42 EE September 1988 A HIGH-SPEED DEPLETION- MODE DMOS FET FOR SMALL SIGNAL APPLICATIONS by Alan Pritchard This article describes a new ultr...

1-09-1988 | EE 45 PCB DESIGN ON THE BBC Xier■elb PC1512/1640 COMPUTERS Many constructors shy away from building even the simplest circuit when a print...

1-09-1988 | 48 EE:rnt1= MICROPROCESSOR-CONTROLLED RADIO SYNTHESIZER 2 by Peter Topping This final instalment of the article deals with the construction...