We love all the Benson Amps, but the Vinny Reverb is one of our favorite models.  A single 6V6 power tube is used as a voltage regulator along with an EL84 power tube.  Variable power scaling from 1/4 watt to 5 watts.

FROM BENSON AMPS:

People have asked us for a few years now to make a Vinny Combo. We listened, and then some. We took the basic beloved Vinny circuit, and we added a tone control, Tall Bird style spring reverb, and power scaling which is uniquely driven by a tube, not a silicon MOSFET! Perfect for rocking out without getting evicted.