Why are transistors called "Q"?

From: Tony Duell <ard_at_p850ug1.demon.co.uk>
Date: Sun Feb 27 16:11:33 2005

> Tubes are definitely V, in the USA too. X is a quartz crystal.

I've seen 'Y' used for crystals too.

>
> I'm trying to remember where I saw CR for semiconductor diodes....

CR (Crystal Rectifier) and MR (Metal Rectifier) were not uncommon for
semiconductor diodes at one time. Solartron certainly used that designation.

-tony
Received on Sun Feb 27 2005 - 16:11:33 GMT