From old datasheet system NPN Silicon Double Transistors (To be used as a current mirror Good thermal coupling and VBE matching) 100 mA, 30 V, NPN, Si, SMALL SIGNAL TRANSISTOR
From old datasheet system LOW NOISE AUDIO AMPLIFIER APPLICATIONS RECOMMENDED FOR CASCADE TRANSISTOR (LOW NOISE AUDIO AMPLIFIER APPLICATIONS. RECOMMENDED FOR CASCADE, CURRENT mirror CIRCUIT APPLICATIONS OF THE FIRST STAGES OF PRE, MAIN AMPL TRANSISTOR (LOW NOISE AUDIO AMPLIFIER APPLICATIONS. RECOMMENDED FOR CASCADE/ CURRENT mirror CIRCUIT APPLICATIONS OF THE FIRST STAGES OF PRE/ MAIN AMPL