Elektor Team (9534)

1-07-1986 | by H Huynen light-sensitive switch A = on B = auto C = oft R1 R2 R6 T1 U C4 DI TIL81 BP103 1N4148 O 4704 e 25V B80C1500 T3 oA B C EZE T2 BC5...

1-07-1986 | 12 13 1 D3 10 216/9131N4148 R17 40p ICI IC2 N1...N4 = IC1 = 4001 N5 = IC2 = 4001 A1,A2 = IC3 = LM358 TIC206D La l L a2 CL.= Nom 78p C10 SI=...

1-07-1986 | EE July/August 1986 MICROELECTRONICS AND by Charles Lewis Public confidence in the pharmaceutical industry is such that both doctor and pati...

1-07-1986 | 1 0-0 5V EE July/August 1986 58 33heart beat monitor C1 820n R4 D2 R6 R15 CA3130 4 1 C2 F 10n C3 l 820n 8 IC4 0000 D2...D5 = 1 N4148 R12 JjA...

1-07-1986 | Musical instruments are tuned with the aid of a signal source that generates a signal at a frequency of 440 kHz. An electronic tuning fork i...

1-07-1986 | EE 60 July/August 1986 135 Many direct-current monitor circuits use a resistor in series with the current-carrying wires, and actuate some i...

1-07-1986 | 361car fuse monitor This extremely simple to construct contrivance offers motorists a visible indication as to the nature of malfunc- tions...

1-07-1986 | This protective circuit is readily in- corporated in battery-powered equipment which is typically in- tended to operate for less than about...

1-07-1986 | EE July/August 1986 62 38 filtered connector Computers and computer-driven peripherals are notorious sources of RF interference, and receive...

1-07-1986 | 139 Unfortunately, we are all well aware that the annual holiday season is an anxious time for many people, since they worry about leaving t...