Elektor Team (9517)

1-07-1980 | 32 This unity gain amplifier is capable of producing an inverted or a non- inverted output signal, as required, depending on the voltage lev...

1-07-1980 | The new Toko piezo buzzer shown in the photo can be used for all kinds of simple acoustic alarm circuits. Its greatest advantage is its extr...

1-07-1980 | 7-26 elektor july/august 1980 This circuit is really meant to control a triac but it can also be put to other uses. The section around Al fo...

1-07-1980 | Less energetic than musical chairs or charades, the use of this circuit can evoke just as much, if not more, humour from populous parties. T...

1-07-1980 | 1 36 5V N1i...N4=IC1=74S00 phase meter This circuit can be used for accurate phase measurements up to 1 MHz. If all due care is taken during...

1-07-1980 | 7-28 elektor july/august 1980 37 1 universal warning alarm 3 ... 15 V 5 ... 20 mA v!rs. 0 61 ip Mc T R511 pH i1 used to pulse a second oscil...

1-07-1980 | 38 This very simple edge detector can find its way into many applications. It relies on the propagation delay of the EXOR gates to provide a...

1-07-1980 | 39 This device makes a special form of biofeedback possible in a very simple way. It is based on the principle that the more the body is rel...

1-07-1980 | 7-30 elektor july/august 1 980 There are now a large number of peripheral devices such as VDUs, TTYs, printers etc. available to the amateur...

1-07-1980 | There are many occasions when an analogue voltmeter is superior to a digital voltmeter. In certain circum- stances, the swing of a needle ac...