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Transistor Basics - NPN vs. PNP - Discrete Semiconductor Products - Engineering and Component Solution Forum - TechForum │ Digi-Key
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NTE Electronics NTE108-1 NPN Silicon Transistor for High Frequency Amplifier, TO-106 Case, 50 mA Continuous Collector Current, 30V Collector- Base Voltage: Amazon.com: Industrial & Scientific
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