This circuit, which controls both the temperature and the level of a liquid in a reservoir, was found in an Electronic Design from the 90s. The circuit is based on a double 555.
This bridge-biased transistor test circuit measures gain in the range 0 to 300. Circuit is from...
This circuit was originally intended to operate with a solar source for experiments. Transistors are...
This 15 V regulator uses the integrated 100 mA L series. The circuit was suggested by Motorola's Linear...