Sony AC-220 Battery Charger and Adaptor

An AC-220 power adapter & battery charger made by Sony in the early 1980s; it is meant for NP-1 batteries (not included). It has been tested as far as being an adapter but I have no NP-1 batteries to test it with. It originally powered a Betacord recorder made by Sanyo but that has a tape stuck in it so this is being sold by itself (if you need parts for the betacord send me a message). The adapter is 12" by 4 1/4" by about 3" in height.