Elektor Team (9517)

1-07-1981 | /I scoreboard This scoreboard featured in this article is intended for use in quiz type competitions where competi- tors can both gain and l...

1-07-1981 | hi-fi pre-amplifier Nowadays, there are quite a number of amplifier modules on the market, which usually contain the complete final output s...

1-07-1981 | 7-06 — elektor july/august 1981 6 Watt 2 stereo amplifier for a car radio The TDA 2004 from SG fiery contains two bal- anced class B power...

1-07-1981 | Si 4The circuit operates as follows: The 741 opamP is connected as a comparator. It compares the voltage at the emitter of the series pass t...

1-07-1981 | 7-08 — elektor july/august 1981 loudspeaker peak indicator Nowadays, any decent loudspeaker unit is, fortu- nately, pretty resistant to ro...

1-07-1981 | polarity converter very Analogue or digital voltmeters (or both!) are a important requirement for the electronics labora- tory, be it amateu...

1-07-1981 | 2 temperature recorder This circuit, together with a certain amount of mechanical ingenuity, makes it possible to construct a relatively ine...

1-07-1981 | 1... linear opamp which feeds a Schmitt trigger. In turn, the Schmitt trigger controls a so-called "totem-pole" output stage. Sensitivity to...

1-07-1981 | pulse generator A pulse generator can be extremely useful when designing digital circuits. To make the most of its possibilities it must be...

1-07-1981 | NOW 10 fuse protector tor we In an earlier Summer Circuits issue of Elekoyer" published an article entitled "fuse destr, a circuit which was...