[sdiy] More weird transistors

[Aaron Lanterman]

D15PC4 - black, circular ledge, with a cylinder part above that that's not 
a full cylindar (not sure how to describe it)

2n3646 - (datasheet archive just says "leaded devices")

- Aaron

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Dr. Aaron Lanterman, Asst. Prof.       Voice:  404-385-2548
School of Electrical and Comp. Eng.    Fax:    404-894-8363
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