This receiver for infrared remote control was found in the Philips Databook of 1990, The circuit operates with 5 V and is intended for receiving data.
Used with telephones at the time, this circuit was found in Popular Electronics from the 90s. The...
Found in a 1965 CQ magazine, this circuit uses period components. The unijunction transistor can...
This dimmer configuration is quite old, as it was found in a 1967 publication. The triac can be of...