Technical Information

What makes the Texas Tone 12™ different from a Princeton amp?

The Princeton wasn't in mind when I designed this amp, although I used to play through a mid '70s Princeton (AB1270 with a 5U4 rectifier). I sold that amp because I couldn't get loud enough unless I had my Tele wide open on the bridge pickup, and couldn't get good distortion unless I was using the neck pickup. As I often play with my Tele tone control rolled off a bit, I couldn't get either the volume or crunch that I wanted. I did a comparison, and here's a synopsis of the differences between my Texas Tone 12™ and the AA964 black-faced Princeton amp.

Compared to the AA964 black-faced Princeton, the Texas Tone 12™ has:

Both amps use a grid bias tremolo, although the component values are different and the Princeton acts on fixed bias power tubes while the Texas Tone 12™ acts on cathode biased power tubes. As far as the tremolo goes, everyone who has played or heard this amp raves about the tremolo.

The combination of higher voltages, a 12AU7 PI, mild cathode bias, no negative feedback, and a larger, louder, more full range speaker enable the Texas Tone 12™ to be amazingly dynamic and touch responsive, while the single tone control allows a simple freedom of varying the amount of warmth or sparkle. When the University of Illinois Physics department did an analysis and upgrade of a Weber 5E3 kit, they found that, after their mods, "the sound of the amp was great, but in many instances the amp without the feedback loop sounded more interesting." They go on to elaborate. In this case, I concur.