This circuit is from a documentation on the MC1539 from Motorola and may, however, be implemented with equivalent operations. The transistor also supports equivalent.
This circuit multiplies a time constant given by the input components. The circuit admits...
This circuit is nothing more than a powerful audio oscillator or buzzer with a power transistor. The...
An way to change the frequency of the previous oscillator (CIR112E) is to add a variable capacitor in the...