Author Topic: tubes... (Read 5492 times)

CJ · « **Reply #15 on:** October 26, 2007, 12:13:44 AM »

Quote from: HEAVIER THAN HELL

Quote from: callme.nasty
well i thought you were saying the ecc81's for the PI and two JJ6L6's for the power tubes... right? because the PI tube is way smaller than the power tubes so you couldn't interchange them anyway.

that IS what I'm saying.

:twisted:

ok, just checking. and i'm correct that the PI tube is the really small one right?

Elliot · « **Reply #16 on:** October 26, 2007, 08:27:49 AM »

Yes that's right - the phase inverter tube is the small one and the power tubes are the big ones. If the power tubes are 2 years old a change would probably add some presence and brightness to the amp.

CJ · « **Reply #17 on:** October 27, 2007, 12:05:28 AM »

how's this? i only have one PI tube so i wasn't going to get the pairs that you posted...

http://cgi.ebay.com/Electro-Harmonix-12AT7WC-12AT7-Ultra-Low-Noise-tube-NEW_W0QQitemZ150173209730QQihZ005QQcategoryZ12050QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Elliot · « **Reply #18 on:** October 27, 2007, 11:24:44 AM »

That would work fine - you don't need matched pairs for the PI tube (the 12A*7) - only the power tubes.

CJ · « **Reply #19 on:** October 27, 2007, 04:22:22 PM »

alright, last night i went and played on my amp again, and this time i cranked it up a bit. definitely sounds much better and doesn't sound dark at all. Maybe my amp just sounds kind of dark when the volumes low. i still bought a new PI tube off ebay though since it was only 14 bucks shipped.