Elektor Team (9512)

1-07-1987 | by R Shankar Switching audio signals digi- tally could be done with the aid of CMOS analogue switches or multiplexers. Simple as this may se...

1-07-1987 | EE JULY/AUGUST 1987 by P Techer 1 The speed and direction of rotation of a motor in a radio controlled model aeroplane or boat is generally...

1-07-1987 | Q EN 811 820 . 122 C28 C20 72132 70p 770p SP 8794 5V BFR 91 =J3 032 = wi= wron 1002 8V ,Cot?, C2 ■I DI. 02: BB 109 008H C213 MIN 7)On •...

1-07-1987 | This extension circuit makes it possible to use a single DAC (digital-analogue converter) for generating four analogue volt- ages. Evidently...

1-07-1987 | 7 A Wien bridge oscillator can be made variable by using two frequency determining parts that are varied simultaneously at high tracking acc...

1-07-1987 | EE JULY/AUGUST 1987 In many older types of SW receiver, intermodulation in the mixer was generally avoided by including a tuneable, often au...

1-07-1987 | This circuit is used for optimum regulation of the flow of hot water in a central heating system. It measures the water temperature, and arr...

1-07-1987 | EE JULY/AUGUST 1987 by R Kambach Any diode-based circuit that protects against reversal of the supply polarity introduces a certain voltage...

1-07-1987 | Nearly all recent proposals for satellite communications sys- tems to provide a service to mobile stations have common features. They includ...

1-07-1987 | Jul„P ugust 19E8 SOLAR POWER GENERATION The sun converts 600 million tons of hydrogen into helium through nuclear fusion every second, and...