The 75v regulator 5v is a 1N4731N4733A model.
The 5V voltage regulator models are 1N4731N4733A, 1N4733B, 1N4733D, and 1N5993. The voltage regulator is usually represented by \"ZD\" plus a number in the circuit. From the appearance point of view, the positive end of the metal package voltage regulator diode tube body is planar, and the negative end is semi-circular.
The 5V voltage regulator models are 1N4733, 1N4733A, 1N4733B, 1N4733D, 1N5993. The voltage regulator is usually represented by \"ZD\" plus a number in the circuit. From the appearance point of view, the positive end of the metal package voltage regulator diode tube body is planar, and the negative end is semi-circular.