2N4299 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 250 V
• Collector-Base Voltage, max: 350 V
• Emitter-Base Voltage, max: 4 V
• Collector Current − Continuous, max: 1 A
• Collector Dissipation: 20 W
• DC Current Gain (h_fe): 50 to 150
• Transition Frequency, min: 20 MHz
• Operating and Storage Junction Temperature Range: -65 to +175 °C
• Package: TO-66

Here is an image showing the pin diagram of this transistor.You can replace the 2N4299 with the 2N3739, 2N4240 or 2N4296.