Elektor Team (9510)

1-09-1987 | Construction The network is most con- veniently constructed on the ready-made PCB Type 87109 shown in Fig. 5. The values of the components g...

1-09-1987 | EE September 1987 16 KBYTE CMOS RAM FOR C64 by P Verhoosel A non-volatile block of RAM or pseudo-ROM for plugging into the Commodore 64"s ex...

1-07-1987 | by J Donhauser This rear light for bicycles is fed from a battery charged with current from the dynamo, and starts to flash when the cyclist...

1-07-1987 | From an idea by F Berben Although joysticks come in an astounding variety of versions, their internal organization is vir- tually always a s...

1-07-1987 | Many of today"s HiFi amplifiers feature a "clicking" volume control, but this is only rarely a real stepped attenuator based on a wafer swit...

1-07-1987 | EE JULY/AUGUST 1987 Simple DC operated motors with a permanent magnetic stator behave as an indepen- dently energized motor. The speed of an...

1-07-1987 | by P Needham this is either Rs, Rs //Rs, or Rd/Rs. A difficulty arises if it is intended to provide an overcur- rent indication for the shut...

1-07-1987 | EE JULY/AUGUST 1987 This code lock provides a high degree of security whilst being a very simple design. At the heart of the circuit is the...

1-07-1987 | from an idea by P Needham At the heart of this simple cir- cuit is the well-known Type KTY10 temperature sensor from Siemens. This silicon s...

1-07-1987 | In addition to the description elsewhere in this magazine of HC and HCT based R-C/L-C RI oscillators for use up to 20 MHz, this design brief...