| General > General Technical Chat |
| Were metal-can transistor pin spacings originally based on tube pinouts? |
| (1/1) |
| Alex Eisenhut:
Idly playing with my tube pin straightener, I was curious to see if I could use it on a 4-pin TO-3 package one pin at a time. Much to my surprise, it fit the 9-pin Noval socket on my pin straightener. Weird. Ya think JEDEC still had some JETEC diagrams lying around and just reused them? |
| amyk:
http://www.interfacebus.com/semiconductor-transistor-packages-4-pin-TO-3-flange-mount.html https://w140.com/tekwiki/images/0/06/B9A_base.gif They are definitely almost exactly the same. |
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