Elektor Team (9517)

1-07-1981 | MEM and fed to pin 8 of IC1. Preset potentiometer can then be used to set the output level while P2 adjusts the frequency of the second gong...

1-07-1981 | 7-34 — elektor July/august 1981 simple shor3 The detector is able to cope with relatively strong input signals, as it is an infinite imped...

1-07-1981 | C. Voss digital keyboard At first sight, this circuit looks rather complicated. It is a keyboard encoder, and it performs the following func...

1-07-1981 | 7.36 eiektor juiy/sugust 1981 35 input buffers for the logic analyser The input buffers described here give the logic analyser (Elektors 71,...

1-07-1981 | um. devices. In this case, potentiometer P2 can be used to set the trigger level. Finally, it is also possible to use the circuit as a pream...

1-07-1981 | 7-38 — elektor July/august 1981 37 digital sinewave oscillator An assortment of digital sinewave generator circuits have found their way i...

1-07-1981 | 38 transform erless aerial amplifier 9 The omega-antenna, published in the June 1980 issue of Elektor (page 6-08), fulfilled a popular deman...

1-07-1981 | — t--- —22 • 104 • C1 • in For those in doubt the "try it and see" method may take longer but will work just as well. If required,...

1-07-1981 | power stabiliser This power supply circuit consists of a three-pin voltage regulator IC in conjunction with a buffaecrt lt of the only trans...

1-07-1981 | constant current LED It is normal nowadays to use a LED as a panel indicator whenever possible. However, in keeping with all electronic devi...