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Double Bass Happy Birthday 6L6! A tubehead thread

drurb

Oracle, Ancient Order of Rass Hattur; Mem. #1, EPC
Commercial User
Apr 17, 2004
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For those who care about such things, this month marks the 80th anniversary of the introduction of the venerable 6L6 beam power tetrode. A staple of many instrument amps, the 6L6 continues strong to this day. Not a bad run for an electronic device! If you're interested in learning more about its history, feel free to PM me.

Edit-- For anyone who PMed for more information, I had planned to send Eric Barbour's history of the 6L6. Thanks to gerryjazzman (see post #5 below) for identifying Invalid Link Removed to it.

6l6-tubes-diagram-WEB_zps3inxxaix.jpg
 
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For those who care about such things, this month marks the 80th anniversary of the introduction of the venerable 6L6 beam power tetrode. A staple of many instrument amps, the 6L6 continues strong to this day. Not a bad run for an electronic device! If you're interested in learning more about its history, feel free to PM me.

6l6-tubes-diagram-WEB_zps3inxxaix.jpg

My B-15N has two.
 
My son saw me drawing up a tube circuit (no plans on building it -- the sweepable midrange that I posted on the electric bass side). So I got to explain how a triode works, and what a revolution it was. ;)
Indeed, but the beam power tetrode was a brilliant move.

6L6Diagram_small_zpsqgs4bw8u.jpg
 
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Eric Barbour did an article in issue #4 of the now defunct Vacuum Tube Valley Magazine on the 60th anniversary of the 6L6 (1996). You can download that issue (as well as the others) from here:

Vacuum Tube Valley Magazine Get the entire 20 magazine set for free! Article By Steven R. Rochlin

It gives a brief synopsis of the magazine and a link at the bottom to the magazines in PDF format via the internet "wayback machine", i.e. web.archive.org. The 6L6 article is in the issue named VTV04.pdf.
 
Eric Barbour did an article in issue #4 of the now defunct Vacuum Tube Valley Magazine on the 60th anniversary of the 6L6 (1996). You can download that issue (as well as the others) from here:

Vacuum Tube Valley Magazine Get the entire 20 magazine set for free! Article By Steven R. Rochlin

It gives a brief synopsis of the magazine and a link at the bottom to the magazines in PDF format via the internet "wayback machine", i.e. web.archive.org. The 6L6 article is in the issue named VTV04.pdf.
Eric Barbour's article has been my bible on the 6L6 for the past 20 years. That was the article I was going to send to folks who PMed me. Thanks for the link!

Invalid Link Removed is a direct link to issue #4 of VTV.
 
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