Voltage conversion of Accuphase DG-68

Just an FYI from GPT. 

No, you would not use a step-up transformer to go from 120 V AC to 100 V AC.

⚡ Why Not?

• Step-up transformers increase voltage, not decrease it.

  • Example: 120 V → 240 V (step-up).

• To go from 120 V down to 100 V, you’d need a step-down transformer (because you’re reducing voltage).

@foolishman 

Based on past experience, I believe moving jumper J1 to J2 will change the voltage of the transformer's primary winding from 100V to 120V.

I strongly recommend using a Dim Bulb Tester during the initial power-on test.  

@imhififan 

Thank you very much for the information.

I have successfully converted to 120V by moving jumper J1 to J2.

Thank you very much again.