I think it is "Q" because when you do the DC bias, you find what is known as Quiescent point. Hence Q
"¦¦¦SHAD0W¦¦¦" wrote in message newsZmug.1768$j26.1312@trndny09...
I can understand not using "T" beause that was used for transformer, which is a heck of a lot older than transistors. But where do they come up with using "Q"? I suppose a TO-18 case looks sorta like a letter Q but it just seems silly. The Japs used "TR" in the old days and it makes sense so I use that.