Tube-Question

[paruwi6172]

Hi folks,
new here, proud owner of a ToneLab LE.
I have a silly or simple question:
Does the 12AX7 tube work in the "pre-amp-section" or in the "power-amp-section" of a AD30VT for example?
Thanks,
Peter

[bclarke675]

As in all Valvetronix products, it works in the "power amp" stage before the solid state amp circuit.

[paruwi6172]

As in all Valvetronix products, it works in the "power amp" stage before the solid state amp circuit.

Thanks for the quick reply,
I mentioned this on another forum, and even AD30VT-owners told me, the tube works in the preamp-section.

Peter

[bclarke675]

This tube is normally a preamp tube, but in Valvetronix amps, they simulate the tube tone of the power amp, as well as help simulate the Class A/AB response.

By the way, this should've been posted in the ToneLab forum. Voxman may move it when he sees it.

[Voxman]

Right on both counts BC...

VOX Valve Reactor circuit delivers true tube power amp sound
The VOX Valve Reactor circuit is the key factor that separates the Valvetronix series from other modeling amps. The 100% analog original power amp circuit actually has the same power amp circuit as a full-tube amp, using a 12AX7 miniature triode to reproduce a distinctive tube amp sound unattainable by digital technology. In other words, it replicates aspects that have an important influence on the sound of a tube amp, such as the power amp's class A/AB operation and the interaction of the power stage with the speaker, thus reproducing not only the response of the original amp's power amp circuitry, but also the power amp's distortion as well as the nuances and subjective sound pressure of a full-tube amp.

...& Voxman did move it!

Rich