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A comment on Germanium transistors: logic circuits in the IBM 1401 computer. Parent comment

Re:Germanium transistors: logic circuits in the IBM 1401 com... by kens on Wednesday March 03, 2021 @09:06PM (#26337710)
I found an IBM patent for high-speed logic using diodes and an emitter-follower. I don't know if this is "Diode Emitter Follower Logic" but it kind of matches the name.

https://patents.google.com/patent/US3050641A/

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