| Abstract | A new control equipment for the NRC auroral all-sky camera, replacing the earlier system put into service in 1957, is described. Use has been made of solid state counters, glow type indicators, and more liberally rated components. The use of separate units to perform each of the various functions permits the choice of a suitable group of units to satisfy the require¬ments of each installation. The basic instrumentation camera controlled may be a 35-mm PSC Mk VII, a 16-mm Kodak Kl00 or both may be operated together. The equipment can be operated on time-stabilized 60 Hz power, or provision can be made to use reliable but poorly regulated 60 Hz power. The use of a battery, float-charged, permits the timekeeping and control circuits to maintain synchronization on power systems with frequent short interruptions. A set of circuit schematics are included. |
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