Figure 1 shows the result. Figure 1 Kibitzer’s version of a McLucas frequency multiplier and square wave generator. Figure 1’s circuit comprises two almost identical sections: input processor, IP ...

My nagging thought was “can the operating frequency range for the Frequency doubler with square wave output be significantly extended above 2.82 MHz?” If “yes”, then can it be done for a “reasonable” ...

Do watch, however, if you’re interested in a big honeycomb-shaped LED matrix being driven at audio frequencies through a dedicated square-wave synthesizer that’s built in. The LED panel in ...