What are some sources for electronic control systems and components?
Adept Rocketry Adept has probably the widest selection and best developed line of hobby rocketry controllers available. They have both altimeter and timer based controllers in addition to payload style altimeters. Countdown Hobbies Countdown is not a manufacturer, but is probably the most varied retailer of hobby rocketry supplies. You can find everything listed in this section and, as they say, much, much more! Designex Corp Bill Schaffer has just introduced a small (2″ x 4″) timer with a range of 3 to 60 seconds. Pratt Hobbies Doug Pratt has recently introduced his ECS-2 radio controlled recovery system. Intended primarily as a backup, it can also be used for primary recovery. The advertised range is 5,000 ft and it will fit in body tubes 2″ dia and up. Robby’s Rockets Robby’s doesn’t make control systems, but they are one of the largest suppliers of the secondary items needed to make them work; specifically flashbulb ignitors, thermalite and stand-alone ejection charges. John Sicker