Philips Electronics

NPN resistor-equipped double transistor R1 = 10 kΩ, R2 = open

NXP Semiconductors.

NPN/NPN resistor-equipped transistors; R1 = 10 kΩ, R2 = 47 kΩ

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NPN general purpose double transistor

NXP Semiconductors.

NPN/PNP resistor-equipped transistors; R1 = 10 kΩ, R2 = open

Philips Electronics

NPN resistor-equipped transistors; R1 = 4.7 kΩ, R2 = open

Philips Electronics

PNP resistor-equipped double transistor R1 = 47 kΩ, R2 = 47 kΩ

NXP Semiconductors.

PNP general purpose double transistor

NXP Semiconductors.

NPN/NPN resistor-equipped transistors; R1 = 22 kΩ, R2 = 22 kΩ

Philips Electronics

NPN/PNP general purpose transistors

Philips Electronics

NPN/PNP resistor-equipped transistors; R1 = 22 kΩ, R2 = 22 kΩ

Philips Electronics

PNP resistor-equipped double transistor R1 = 10 kΩ, R2 = open

NXP Semiconductors.

NPN/PNP resistor-equipped transistors; R1 = 10 kΩ, R2 = 10 kΩ

Philips Electronics

PNP/PNP resistor-equipped transistors; R1 = 10 kΩ, R2 = 47 kΩ

NXP Semiconductors.

NPN/PNP resistor-equipped transistors; R1 = 4.7 kΩ, R2 = open