From cbuttacav–(at)–ol.com Mon Apr 12 10:20:00 CDT 1999
Article: 171420 of alt.guitar.amps
Path: geraldo.cc.utexas.edu!cs.utexas.edu!nntp.primenet.com!newsfeed.cwix.com!152.163.199.19!portc03.blue.aol.com!audrey01.news.aol.com!not-for-mail
From: cbuttacav–(at)–ol.com (CButtacavo)
Newsgroups: alt.guitar.amps
Subject: Re: 6L6 tubes…question.
Lines: 11
NNTP-Posting-Host: ladder05.news.aol.com
X-Admin: new–(at)–ol.com
Date: 12 Apr 1999 02:02:29 GMT
Organization: AOL http://www.aol.com
References: <370FB0ED.8DB1B8C--(at)--riodeel.com>
Message-ID: <19990411220229.26350.0000197--(at)--g02.aol.com>
Xref: geraldo.cc.utexas.edu alt.guitar.amps:171420

Gentlemen, maybe some of this may help.the 6L6 was made of metal and introduced
in march of 1936.The G followed in June of that year.This was a glass bottle in
the “cokebottle” shape.The GA was the same shape but a touch smaller,ST-14
versus ST16.This was 1943.The GB was the first straight sided glass version
introduced in 1954.Up to this point all were rated 19W . The GC utilised
thicker plate material and a different base structure and was uprated to
30W.This was 1958. I think this progression of changes illustrates that the
suffixes serve a definite design change purpose and not merely to denote
envelope material. This is just some info that I thought would make things
better for the N.G. ,nothing more
Charlie