Charger for Toyo Ds-4 Ult-Sound. Polarity + 

 

Toyo Ds-4 Ult-Sound Synth

I have Bought a Ult-Sound Toyo Ds-4 Ult-Sound, I was searching online the polarity Because there was not the original power supply. The correct is + + like in the photo. I hope will help you.