Sanyo M W750 Portable Stereo No Cord Works With Batt One Cassette Quiet Read KR

Tested with batteries (not included) Radio plays One Cassette Works Other Cassette plays but very quiet DC 9V: I plugged in a low amperage 9V and the stereo received power. My best guess is the power Works but needs an adapter more powerful than mine. I will keep the price low and listed for parts only until I find a power adapter to include and test. No tapes included. Made in Korea