2N3740

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Medium-power PNP silicon power transistor housed in a rugged metal TO-66 diamond-style package, optimized for linear current gain in power amplifier driver stages and voltage regul ators. Equivalents: 2N3741, MJE350, BD140, NTE185. Real-Life Examples: Mid-1970s consumer stereo receiver output driver boards, continuous-duty industrial relay/solenoid triggers, and linear series voltage regulators. Show more