Found in a 90s Radio Electronics, this circuit uses an AD590 or AD592 for remote temperature transmission. The circuit produces a voltage of 1 mV for each degree centigrade.
Found in a 1968 documentation, this small amplifier was very popular at the time being used in...
This simple audio signal tracer or follower can be made with a BC548 instead of the original...
According to the 1990 documentation in which we found this circuit, the chickens must be fed at...