This is the receiver for the previous circuit found in the November 1991 Radio Electronics magazine. The frequency is 2.2 MHz determined by the coils.
Other operational amplifiers of the same the series, such as the MC34072, MC34074, MC35071,...
September 2017 - Würth Elektronik High Power Ultraviolet LEDs can be obtained from Mouser...
How about a rhythmic light system that uses only one component? If you think this is impossible, it’s...