I have 3 in stock of the PHILCO 2N387 Germanium Power Transistor from date 1959, 1961 and  date 1962 Super Rare in Mint unused condition early TO-3 """" Who buys first I will send the oldest date code to you first"""". I added another 1961 part I found in inventory.

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The 2N387 is a Germanium Alloy Junction Transistor with Low Thermal resistance  made for Audio out Power Stages  and Servo Amps, this package was a precursor to the TO-3 I believe.