Vintage Tascam Porta One 4-Track MiniStudio Cassette Recorder - One Bad Channel

Vintage Tascam Porta One cassette 4-track machine in very good overall condition, very clean with minimal signs of use. No power supply is included, but we were able to power it for testing with our generic adapter (it requires an 11-15V DC adapter with a negative center). It powers normally, and plays back cassettes with no issues on channels 1, 3 and 4, but no playback or input was audible on channel 2. Pan, tone, and trim controls all function smoothly, and aside from the bad channel no issues were found.
No power supply, cables, tapes, or other accessories included. Sold as pictured and AS-IS.