VT66 / 66A triode type music integrated circuit
VT66 / 66A typical application circuit as shown:
VT66 / 66A package with TO92, its shape and plastic 9013-type transistor resembles, and its own with a metal heat sink, there are three leads to feet, and the general use of the same transistor as convenient, it is also known as the music transistor. As shown in its typical application circuit.
VT66 / 66A stored music name and chip number relationship: