| 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...
| 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...
| A voltage controlled harmonic gener- ator is a particularly useful device for music synthesisers as another means to achieve sound synthesis...
| 7-68 elektor july/august 1980 And now for something different ... Over the years, all kinds of wired and wonderful switches have found their...
| Certain requirements must be met when designing CW filters (CW = carrier wave — basically, unmodulated morse telegraphy). The response cur...
| 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...
| 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...
| Those of you who study advertise- ments will have noticed that minia- ture crystals for watches are much cheaper nowadays. These crystals ar...
| 7-72 elektor july/august 1980 SI 12 03 0310 13 04 IC4 04 74LS175 9 4 Di 01 5O202 2D217 12D303 5V® HEXA DEC. Keyboard DI mim P.STROBE STROBE...
| 77 Switching power supplies have a number of advantages over the more conventional types. Less heat dissi- pation and a greater efficiency l...
| 7-74 elektor july/august 1980 This simple little circuit will find a great many uses where pulse width is critical. Opamp Al is connected as...