Video Demonstration here: https://youtu.be/sWhKOram-BU?si=xIRBj4kp26kTa4lX New modern innards by updatemydynaco.com with the exception of the line board which was completely rebuilt by myself. has a new Power Supply Board, New Phono Board with onboard adjustments for capacitance and sensitivity etc as well as a power on relay board. Not many people know this but theold PAT-5 was always on when plugged into a live socket. All the power switch did was turn on and off the switched power socket on the back to save costs. With the new power on/off relay board, the power switch is a true on/off switch with delay relay to prevent transient pops from an amp turning on. It is a great improvement... If you are looking for an original working PAT-5, I also have one of those too, for much cheaper with all original boards fully working ($350). It can be seen and heard here: https://youtu.be/K9s_vg9AydM Auditions by appointment only.