Found in Maxim's documentation from the 90's, this circuit uses an integrated from the time providing a 12 V output from 10 to 12 V inputs.
This circuit, from the 1977 GE semiconductor manual, uses a unijunction transistor beyond the...
This circuit, when connected to the 110 V power grid makes it possible to test capacitors with...
This circuit was found in a Texas Instruments handbook about operational amplifier. It has a very...