In Reply to: Where are you putting the 12AX7 posted by Charlie8521 on March 28, 2015 at 16:21:27:
6EU7 and 12AX7 are about the same tube inside the bottle. Both are twin triodes with a mu of 100. The 12AX7 has a center-tapped 12 volt heater so it can be run on either a 12 or 6 volt heater supply. The 6EU7's two heaters are in series and need 6 volts.
So you'd have to rewire the socket to use a 12AX7, but that's it. Also, if you rewired for a 12AX7, you could try a 12AT7 (mu of 60) to see if that sounds better to you.
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Follow Ups
- RE: Where are you putting the 12AX7 - Lee of Omaha 18:52:16 04/06/15 (0)