Those look like some surplus transistors I bought from Poly-Paks (or possibly Meshna) in the 1970s, but many devices were packaged similarly, so it's hard to say with any confidence what yours are from a photo.
Mine were PNPs, with beta values around 50 and breakdown voltages in the 20-30V range. I remember making a crude ft measurement and getting values north of 300MHz (about the limit of my janky high-school setup). They were faster than the 2N3906s I used for comparison. I built a lot of little 1- and 2-transistor radios with them, back in the day.
I think I still remember the pinout: Looking at it with the red dot on top and the leads oriented to form a T, the left and right arms were the collector and base, respectively, and the bottom stem was the emitter (I'm most certain of this one). A quick diode check with your DMM should reveal whether your device could be similar.
-- Cheers,
Tom
--
Prof. Thomas H. Lee
Allen Ctr., Rm. 205
420 Via Palou Mall
Stanford University
Stanford, CA 94305-4070
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On 7/5/2024 6:56 AM, Renaud F5ZR via groups.io wrote:
Hi,
Sorry because this is not an HP topic, plus it's I believe it's a long shot.
I got 25 of those:
