Posts tagged with “Sun Research”

Mayday Uninterruptable Power Supplies

Mayday was a line of uninterruptible power supplies for the TRS‑80 and other computers. It was sold by Sun Research (originally Sun Technology), a division of Phase-R Corporation.

Phase-R Corporation was located in New Durham, New Hampshire and experienced frequent problems with poor power quality and frequent outages. They originally developed the Mayday to protect the office TRS‑80’s, describing it as “designed and developed using a complete TRS‑80 system.