Onboard Electronics Wiring Diagram

Tube DriverMini Tube Amp

SPK +To Speaker +

JK +UnampedSignal Out(To Jack)

OUTTo Jack +

GNDTo Jack -

Batt -

B+To Batt +

INPUTFrom Guitar

INPUTFrom Guitar

HP +To Headphone

SPK -To Speaker -

GNDBatt -

Guitar Signal -LED +

B+To Batt +

Custom EQ Control Multi Drive

OUTTo Jack +

OUTTo Jack +

GNDTo Jack -

Batt -

GNDTo Jack -

Batt -

B+To Batt +

B+To Batt +

INPUTFrom Guitar

INPUTFrom Guitar

B+Unswitched

Custom EQ Control will produce a slight POP when switched on. To reduce this wire Battery + (Red) to “B+ Unswitched”- but only if using a switching jack.

Mini Tube Amp can produce amplifi ed sound to a 1/4” jack using SP+ and SP-, and still produce normal sound through JK+. DO NOT use common ground for signal and speaker on Mini Tube Amp. Trim pot adjust level of output distortion when cranked, clockwise for more.

Tube Driver can produce extreme levels of boost at max- so be careful!!

Multi Drive Trim Pot adjusts Dirty sound level only- Active Clean mode (Position 1) is ALWAYS unity gain. (No Boost)

Switching Jack Wiring Diagram

Mini Tube Driver Sonic Expander

OUTTo Jack +

OUTTo Jack +

GNDTo Jack To Jack +To Jack To Jack + -

Batt -

GNDTo Jack -

Batt -

B+To Batt +

B+To Batt +

INPUTFrom Guitar

INPUTFrom Guitar

All Circuits install in a similar manner

Find the wire that leads to your output jack. Cut this wire. The side that leads to the jack ALWAYS goes to the “out” of any circuit, the side that leads back to your pots ALWAYS goes to the “In” of any

circuit. We like to wrap the 9 volt battery in some foam, affi x with a rubber band and install in the control cavity.