This simple injector circuit can actually be powered by voltages from 3 to 9 V. The frequency is given by C1 which can be between 4.7 and 10 nF. The CMOS can also be 4011.
This circuit takes advantage of the base emitter junction of a general-purpose transistor to...
This interesting sound effect circuit that produces the sound of bulls or Bull Horn was found in...
This second-order low-pass Salen-Key filter was obtained from an American 1980s documentation. Formulas...