Elektor Team (9533)

1-07-1980 | Readers who have built the five octave version of the Elektor piano can extend its frequency range by the addition of two more octaves with...

1-07-1980 | 7-90 elektor July/august 1980 Programmable Read Only Memories 1 are finding their way into more and more electronic construction projects. U...

1-07-1980 | An expensive item in any shop- keeper"s budget is the cost of illumi- nating the window display. One method of reducing costs is to keep the...

1-07-1980 | 99 "Energy crisis" is becoming something of a catch phrase nowadays, for one reason or another. Whether this is due to a shortage in fossil...

1-07-1980 | 100 continuity checker The question often arises — is it a high resistance or is there an open circuit somewhere? The purpose of this test...

1-07-1980 | 7-96 elektor july/august 1980 LS 1501) 2 12 V R3 5 R4 R6 12 V0 ioo= R11 ..-012 V 2 fir ;* 16 80071 80145 Recently we published a circuit for...

1-07-1980 | 7-98 elektor july/august 1980 Table 1. Type TIP 30A BFY 90 BFW 92 BF 181 BFW 16 A Table 2. b/K21 Manufacturer 13 Texas Instruments 21 Philip...

1-07-1980 | 103 cheap source of energy Because of the ever diminishing world energy sources it is imperative that we investigate any form of alternative...

1-07-1980 | 10 It is often convenient to utilise an automatic range switch (autoranger) when measuring with digital meters. Unlike the forgetful human,...

1-07-1980 | 105 solid state tachometer Only a handful of components are needed to produce this tachometer which is useful both in the car and on machine...