This small audio amplifier circuit in complementary symmetry was found in the 1974 Mullard Databook. The output pair can also be the BD135 and 136.
This sample and hold circuit is traditionally configured and uses an operational amplifier with...
Using a large inductance, this circuit was found in a Popular Electronics from the 90s. The...
This triac circuit was found in the July 1995 Electronics Now magazine. The triac is based on the...