Elektor Team (9534)

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...

1-07-1980 | Certain requirements must be met when designing CW filters (CW = carrier wave — basically, unmodulated morse telegraphy). The response cur...

1-07-1980 | 7-70 elektor july/august 1980 IC4 74155 8 51 3 13 11 8 9 11 6 N10 2 IC7 7493 3 10 8 9 12 IC 5 7493 21 3 10 11 Ien IC1 IC2 N1 ... N6 = 1%7400...

1-07-1980 | RO r 1,00 i R3 *R0+141 = 22 k RL = 4k7 6.5kHz Most communication receiver de- signers assume that "anything above 3 kHz can be cut out" and...