Custom Tube Buffered Effects loop driver board PCB Only

Super compact design. Only 1.5"x3" in size. Fits easily in most guitar amps without modifications. 

Super flexible design-can be installed in multiple different ways.

Driver board designed to be wired to a tube in the chassis of your amp. 

Uses any 12AX7, 12AT7, or 12AU7 type tube.

Designed for use in most Tube Guitar Amplifiers.

Operates in serial and parallel modes. (switch included)

Send and Return level controls drive long cable runs and any kind of rack or pedal effect with zero loss and amazing headroom and clarity. 

Easy to install. 

Designed for amp building enthusiasts and amp technicians. 

(tube socked and tube not included)

Everything you need to upgrade your existing amp or replace that solid-state unit with a real Tube Buffered Effects Loop.

You will immediately hear the difference.

This loop is completely transparent and is designed to be installed always on.