Other settings like this can be found on this website. This makes use of old operational amplifiers, as the publication where we obtained, but equivalents can be used.
This circuit is from a 1965 General Electric Hobby manual. The circuit uses only passive...
We found this circuit in a 1967 RCA SCR manual. The circuit uses components from the era. The...
Found in American documentation from the 1970s, this circuit can be designed based on a modern SCR,...