Elektor Team (9517)

1-07-1980 | Many electrical appliances in the home have become so automated that it is no longer necessary to switch them on and off manually. Unfortuna...

1-07-1980 | 7-60 elektor july/august 1980 There are many old telephones around which still look and work fine and which are often put up for sale at a r...

1-07-1980 | 7-62 elektor july/august 1980 T R3 a D C215 C4 C5 BC 177B IZ=1 0 am Ems 105 R8 15VR5R6P3 P2 50k 50k logU log 15 V 15 14 11 R12 270k C6. C.L....

1-07-1980 | Rectification is usually a question of removing the negative half-cycle (during positive rectification) or the positive half-cycle (during n...

1-07-1980 | 1 test probes are an open circuit. This permits numerous possibilities. The simplest version which uses a small transformer and a bell is sh...

1-07-1980 | 7-64 elektor july/august 1980 1 4,5 ... 6 V 4,5 ... 6 V R2 R3 0 4,5 ... 6 V CI R 4,5 ... 6 V . For most of us, giving money away is very eas...

1-07-1980 | 68 It has nothing to do with the mail, but it is small enough to go through it. This circuit is a versatile, miniature amplifier and loudspe...

1-07-1980 | 7-66 elektor july/august 1980 1 4V5 U8 16 vcc 012f1ff D6 R I Start =I= ADUS N9 211 uBe D5 . . . D18 = LED = red Vcc 0 +401 019 D19 . . . D21...

1-07-1980 | A voltage controlled harmonic gener- ator is a particularly useful device for music synthesisers as another means to achieve sound synthesis...

1-07-1980 | 7-68 elektor july/august 1980 And now for something different ... Over the years, all kinds of wired and wonderful switches have found their...