This single trigger circuit has been indicated for photography applications. The circuit is from a 1964 Electronics World. The transistor is general-purpose and the SCR can be of any type.
This complementary or bilateral emitter follower was found in American documentation from the 90s....
This circuit was found in old American documentation. It is a Wien bridge with the component...
This small audio amplifier uses germanium transistors and a 12 V supply. The circuit is from a...