Reviews

• Scratch Back-Up Box (18V launch controller) By Larry Brand

  ( Contributed - by Larry Brand - 05/16/05) Brief: The Back-Up Box is a simple, low-cost launch controller anyone can build. I built it as part of a NARTREK Advanced project. It can fire any kind of igniter and is entirely self-contained, operating on 18V instead of the usual 12V. It is lightweight, compact, and is intended to be carried in your vehicle at all times as a backup to ...