Question: What battery pack and charger are used for this?
Answer: The battery pack is no longer available as the PRO-38 was discontinued in 1991. The adapter must be a 9V, 300 mA (minimum) adapter with a 2.1 mm / 5.5 mm plug. The 273-1863 DC/DC adapter and the 273-1767 AC/DC adapter both meet these requirements. Each comes with your choice of one free adaptaplug. You will need the "M" size adaptaplug, Cat. No. 273-1716.
