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A comment on First claimed successful replication of LK-99 superconductivity (includes video). Parent comment
https://en.wikipedia.org/wiki/Point-contact_transistor
that said, it was still manufactured and sold before being replaced by more "conventional" transistors.
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https://en.wikipedia.org/wiki/Point-contact_transistor
that said, it was still manufactured and sold before being replaced by more "conventional" transistors.