Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: hesamadman on August 22, 2015, 07:44:49 pm
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With a 12ax7, pin 9 is considered an internal center tap. So one of my filament leads goes to 4/5 and the other goes to pin 9. Does it matter which one of those leads goes to pin 4 or 5 of the el84. Like should 4/5 of 12ax7 be connected to pins 4 or 5 of the el84 or does this matter?
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The general consensus is no.
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... my filament leads goes to 4/5 and the other goes to pin 9. Does it matter which one of those leads goes to pin 4 or 5 of the el84. ...
Try it yourself. Hook it up one way, play & listen, then hook it up the other way & repeat.
You tell us if it made a difference. :icon_biggrin:
(Only saying it this way because urban legends don't get put to bed unless you see for yourself.)