Tube changing help...

PannyDeters

New member
I read on here that putting in a newer quality tube into an ART Tube MP would make it sound better.

So I put in a Groovetubes 12AX7C.

Now, either my Rode NT1 doesn't work, or the phantom power doesn't work.

When I run a battery-powered condensor through the unit, it works. But when I plug in the Rode, it doesn't. I'm not sure if I messed up the phantom power or if the Rode is broken.

Any suggestions?

Also, I put the old tube back in and it still didn't work.

One more thing, what's the difference between a 12AX7C, 12AX7R, etc?

Thanks.

DP
 
Sounds like a phantom power problem. Hard to say. Check the connectors on the PCB of the ART, maybe you unplugged one of them.

Test your rode through another preamp to eliminate a variable.
 
Put the old tube back in... if it works, make sure the new tube is a proper 12ax7... if it is, return new tube for exchange.
 
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