Elektor Team (9517)

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...

1-07-1987 | EE JULY/AUGUST 1987 Two inverters, one resistor and one Capacitor are all that is required to make a HC(T)- based oscillator that gives reli...

1-07-1987 | On most FM tuners, the stereo indicator lights upon detection of the 19 kHz pilot tone. How- ever, this need not mean that the programme is...

1-07-1987 | from an idea by J W v Dijk Many monitor chassis currently offered by computer surplus stores have separate inputs for horizontal and vertica...