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.
In the figure we have a simple signal tracer circuit to be coupled to the volume control of an AM...
This circuit was found in documentation from the 90s, using components from that time. The...
This circuit, obtained from old documentation, allows the recovery of sulfated batteries. The...