We find this circuit in a 1980s Linear Technology documentation. The circuit can be implemented on the basis of more modern equivalent components.
The purpose of this circuit found in a 1990s Popular Electronics is to increase the current...
This receiver for infrared remote control was found in the Philips Databook of 1990, The circuit...
Using a 709 integrated circuit this circuit was found in the June 1972 issue of Radio Electronics...