Elektor Team (9533)

1-11-1976 | A circuit for producing a calendar display using the pulses from a digital clock has already been described in Elektor 8. This design p...

1-11-1976 | A domestic intercom doesn`t require a complicated circuit. The unit described here uses only a handful of components, even though an...

1-11-1976 | Although designed as a warning horn for use . with the `Albar` ultrasonic alarm system de- scribed elsewhere in this issue, the...

1-11-1976 | The well-known TTL IC type 74 I 21 is a monostable multivibrator that can be set to give an output pulse with a duration...

1-11-1976 | In this age of digital things (?) it is nice to dress up the front panel of home-brew equipment with digital readouts. This handsome...

1-11-1976 | Summer is long gone, and all of nature is proceeding through its autumnal eventide towards winter hibernation. Birds are departing,...

1-11-1976 | The film slave is a sound activated switch originally intended to control a cine camera. However, with little or no modification it...

1-11-1976 | A pulse generator is an extremely useful aid when testing and servicing logic circuits. The generator described here is uncomplicated and...

1-11-1976 | This unit will sound the alarm if the door of a refrigerator is left open too long. Very few components are required for this effective...

1-11-1976 | A number of methods are known to perm it isolation between separate but otherwise co- operating electric circuits. Perhaps the most fam...