Why are transistors called "Q"?

From: John Honniball <coredump_at_gifford.co.uk>
Date: Fri Feb 25 19:10:36 2005

Here's a question that came up at the office when a colleague looked
at a PCB and asked "why are the transistors labelled with Q?" Well,
I suggested it might be to avoid a clash with "T" for transformer.
Or maybe "Q" represents a generic semiconductor, such as a FET, SCR
or triac. Or is there some other reason?

John Honniball
Received on Fri Feb 25 2005 - 19:10:36 GMT

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