No trickery involved.
The type is a 2N3439 ( high voltage NPN in TO5 pack)
..... Phil
- posted
15 years ago
** See ABSE for pics of a silicon NPN transistor chip emitting light.
No trickery involved.
The type is a 2N3439 ( high voltage NPN in TO5 pack)
..... Phil
We used to cut the lid off BC108 transitors and see purple light (way way way before blue LEDs came on the scene) this would be 35 years ago.
Mik
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