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Old August 10th, 2009, 09:49 AM   #1 (permalink)
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Default Any Suggestions for Vox AC15 Replacement Valves?

Got a Vox AC15CC1 last week. The stock valves suck.

Any suggestions re what brand(s) of replacement valves?

Mike

PS The biggest difference I find with this amp is that it amplifies (no pun intended!) my mistakes!
So maybe (hopefully) it'll force me to be a better technical player!


Last edited by Flynnski; August 10th, 2009 at 10:24 AM. Reason: splengi
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Old August 10th, 2009, 10:04 AM   #2 (permalink)
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http://www.nebsnow.com/LordValve

Send a note to this firm. They really know their valves!
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Old August 10th, 2009, 11:09 AM   #3 (permalink)
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NOS is the way to go. I replaced the chinese EL84's in my AC30 with NOS GE's bought from this guy http://www.eurotubes.com/index.htm, they're less expensive than Mullards but provide a similar sound. I replaced the chinese 12ax7 with NOS Telefunkens and the Russian rectifior tube with a NOS Mullard. It was an expensive swap-out but greatly improved the sound.
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Old August 10th, 2009, 11:52 AM   #4 (permalink)
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Quote:
Originally Posted by Flynnski View Post
Got a Vox AC15CC1 last week. The stock valves suck.

Any suggestions re what brand(s) of replacement valves?

Mike

PS The biggest difference I find with this amp is that it amplifies (no pun intended!) my mistakes!
So maybe (hopefully) it'll force me to be a better technical player!
If the layout of the AC15 is the same as the AC30 then be advised that changing the valves is going to be a bit more difficult than changing tubes in a Fender Twin. I believe the speaker lead is a soldered connection which will have to be de-soldered to gain access to where the valves live. If you are not going to do the job yourself (changing pre-amp and the main valves and re-biasing) you may want a professional do it. If he can let you watch as he does it than you can gain some knowledge..
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Old August 10th, 2009, 12:07 PM   #5 (permalink)
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I have JJ/Tesla EL84s in my Voxes. I also use them in my amps. There's an EL84 comparison on one of my computers. I'll see if I can round it up.

The AC15 is cathode biased, so you would not have to bias new tubes.
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Old August 10th, 2009, 02:07 PM   #6 (permalink)
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Thanks...great info...

Keep 'em coming!

mike
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Old August 11th, 2009, 06:17 AM   #7 (permalink)
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Quote:
Originally Posted by vjf1968 View Post
If the layout of the AC15 is the same as the AC30 then be advised that changing the valves is going to be a bit more difficult than changing tubes in a Fender Twin. I believe the speaker lead is a soldered connection which will have to be de-soldered to gain access to where the valves live. ..
Sure hope not...I'm useless...
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