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AF117 Germanium Transistors TESTED to spec with data print out photo 3,4 on Vceo, Vcbo, Hfe and leakage on industry standard semiconductor tester photo 2, Part are from STI company most likely from 1960\'s, not marked STI but from there old stock I acquired, New Old Stock in pretty good shape for 60+ years old, also done is a 100 volt Hi Pot test to make sure of any tin whisker growth, I do a Hi Pot or Leakage at 100 volts from Case lead to the Base,Emitter, and Collector lead shorted together, photo 5, then after that test I retest them to spec for the second time. These parts I hear were used in the IF parts of radios and audio parts of AM radios, a real hobbyist transistor.
