AUTOMATION DYNAMICS

ELECTRICAL AND ELECTRONIC DEVICES-NAMELY, POWER SUPPLIES FOR TELEMETERING SYSTEMS; BALLOON TELEMETERING SYSTEMS AND AIRBORNE AND GROUND COMPONENTS THEREOF; HIGH FREQUENCY COMMUNICATION ANTENNAS; AUTOMATIC CABLE TEST SETS; NOSE CONE RECOVERY BEACONS; AIR CONDITIONING AND INDUSTRIAL CONTROL DEVICES INCLUDING VACUUM TUBE AMPLIFIERS, TRANSISTOR AMPLIFIERS, CONTROLLERS AND TRANSDUCERS; ALTITUDE CORRELATORS AND SPECIAL PURPOSE COMPUTERS; AND RADIOMETERS FOR RADIOSOND DEVICES