This circuit was taken from a Popular Electronics from the 1990s. The circuit triggers a relay that disconnects the load.
The circuit shown is from the GE semiconductor manual of 1977. In the table we have the values of the...
This circuit for 3.3 V logic circuits has a 5 V input and the maximum output current is on the...
This circuit was found in a 1960s General Electric unijunction transistor manual. The circuit can...