Vintage Aviation RS Beeper Box.

Description

This is an aviation aircraft RS Beeper Box by Judith Mountain Technologies. With preheat on/off switching. For use with electric aircraft preheaters. This box still works I haven't hooked it up to the aircraft but the red light comes on when plugged in. The pager network is was designed for may no longer be active but it is prefect for aviation collectors. It may also be a valuable peice of electronic equipment for people that know as some of the circuitry and equipment inside may be valuable or of use elsewhere as well. There are to many of these that are still available and around in working condtion.