Elektor Team (9512)

1-07-1983 | 19 emergency mains cut-out If the voltage of the mains supply of a computer rises too high, compo- nents on the printed circuit boards can e...

1-07-1983 | 20 simple baud rate generator The generator described is a good- value-for-money alternative to the commercially available types; it uses on...

1-07-1983 | elektor july/august 1983 21 flashing running light Roadworks are usually marked during the hours of darkness by yellow flashing lights. Thes...

1-07-1983 | 22 2650 single step It can be very handy if the micro- processor can be put into single step mode when debugging home made programs. This li...

1-07-1983 | lektor july/august 1983 23 1MHz time base without crystal Clock generators, for instance, those used in microprocessor systems, are normally...

1-07-1983 | 24 machinegun- soundgenerator Computer games are even more fun when they are accompanied by sound effects. As most such games have a more or...

1-07-1983 | 25 centronics interface... with the 6522 VIA In spite of the advantages of a visual display unit for a computer this, now common, medium has...

1-07-1983 | ktor july/august 1983 26 joystick interface It happens from time to time that it would be nice to read the position of a potentiometer with...

1-07-1983 | 27 auto trigger This circuit gives an output voltage when the input voltage rises above a certain reference level which is derived from the...

1-07-1983 | LED "amplifier" The light emission of an LED is normally pretty low. If more brightness is required, the following circuit will help. The LE...