Datasheet for the 2N2484 in PDF format, 49.8 KB, indexed alongside schematics. The 2N2484 is an NPN silicon transistor known for low-noise, high-gain operation at small currents, so it often turns up in preamplifier and instrumentation input stages. The sheet gives pin assignment, absolute limits, noise figures and gain at low collector current. When replacing it, use these figures to make sure a substitute keeps both gain and noise performance, otherwise a sensitive audio or measurement stage may behave differently.
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