2N1711 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 50 V
• Collector-Base Voltage, max: 75 V
• Emitter-Base Voltage, max: 7 V
• Collector Current − Continuous, max: 0.5 A
• Collector Dissipation: 0.8 W
• DC Current Gain (h_fe): 100 to 300
• Transition Frequency, min: 100 MHz
• Noise Figure, max: 3.5 dB
• Operating and Storage Junction Temperature Range: -65 to +200 °C
• Package: TO-39

Here is an image showing the pin diagram of this transistor.You can replace the 2N1711 with the 2N3019, 2N3107, 2N3499, 2N4032, 2N4033, 2SC503, 2SC503-GR, 2SC504 or 2SC504-GR.