This circuit was found in an Elektor from the 90s. The integrated circuit is uncommon today. This integrated circuit consists of a temperature sensor.
With this circuit it is possible to tune an AM signal using a 5k potentiometer (4k7). The circuit was...
This is the conventional protection system for a low resistance analog instrument (millameter or...
For counting to values higher than 16, many 4520 can be cascaded as shown in Figure . The EN...