We found this circuit that can reach 50 MHz in the February 1997 Electronics Now magazine. The integrated circuits used are not very common today.
In this circuit, which uses one of the four comparators of an LM339 (or LM139 or 239), capacitor C1 and...
This timer activates a relay after a time interval of up to 15 minutes has elapsed, starting from...
This inverter can reach a power of 300 W depending on the transformer used. In this case, a...