By request, I'm offering my latest pedal, the AU-DRIVE which is a 100% tube booster. I am only going to make an extremely small amount of them available since I have a very limited amount of the vintage 12AU7A tubes that are used in them, so once they are sold, I will not be making any more of them for sale. By the way, NOS USA 12AU7A tubes go for up to $70-80 alone.
There are three versions. The one on the left is point-to-point wired, with a standard, clickable true bypass, in a black 125B enclosure with an exposed tube and polished aluminum tube 'roll bar', and the version on the right is the 'Ultra Deluxe' version that comes in a hand polished 125B with a relayed true bypass/soft touch stomp switch, lighted controls with dimmer, with the tube enclosed inside of the pedal. They all have all top jacks (in/out & DC jack). The one on the l bottom left has already been sold. The beauty of this pedal is that it only requires 9 volts DC, and draws approx 150-200ma.
In my opinion, the AU-DRIVE is an awesome sounding booster pedal for bass that becomes a low to moderate overdrive with the drive control dimed. (as demonstrated in the soundclip below).