[50 V, 100 mA PNP/PNP resistor-equipped double transistor; R1 = 2.2 kΩ, R2 = 47 kΩ, 50 V, 100 mA PNP/PNP resistor-equipped double transistor; R1 = 2.2 kΩ, R2 = 47 kΩ; PNP/PNP double Resistor-Equipped Transistor (RET) in a very sma