• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

12ax7

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The 12AX7 is probably the most common preamp valve in guitar amps today. All popular amplifier designs use them, so it's impossible to pick just one to give you. It all depends on what your preferences are. Here is a good starting point for guitar amp schematics. Just look up some of your favorite amps or the amps of your heroes.
 
AmpKiller66 said:
The 12AX7 is probably the most common preamp valve in guitar amps today. All popular amplifier designs use them, so it's impossible to pick just one to give you. It all depends on what your preferences are. Here is a good starting point for guitar amp schematics. Just look up some of your favorite amps or the amps of your heroes.


The Vox AC30 front end looks promising.

Many thanks........
 
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This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.