Eliminate batteries and save electricity. The On-Stage OSPA130 features a smart circuit that reduces power when not in use; no more hot transformers! Direct replacement for the Yamaha PA130 AC adapter. Compatible with most battery-powered Yamaha keyboards. Also compatible with many 12 V volume pedals. Recommended with: PSR-E403, YPT-400, EZ-200 and EZAG. Also compatible with older models and the following silent stringed instruments: SV-120, SVC-50, SVC-100, SVC-200 and SVB-100