Elektor Team (9534)

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...

1-07-1980 | The versatile 555 timer IC has the habit of turning up in wide variety of circuits. As it is such a useful little device it has become very...

1-07-1980 | 7-32 elektor july/august 1980 0 15 O P1 = ()factor preset P2 = fo preset C611000 80525 Many multi-band receivers and cheap communications re...

1-07-1980 | 0 vacuum © Wheatstone-bridge INEEK X = 8 V A Wheatstone bridge consisting of four piezo-resistive elements has been diffused onto the top s...