A Vintage Single Transistor LED Blinker — Hackaday

[Eric Wasatonic] had a box of SWB2433 transistors that he had very little information about. In order to discover their properties, he fired up his curve tracer to compare these transistors with more common ones. He noticed the SWB2433 exhibited negative resistance while the similar curves of a 2n3904 didn’t. Then he reverse-biased the two…

via A Vintage Single Transistor LED Blinker — Hackaday

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