Environmental Quarterly

Environmental Quarterly

4.11 - 1251 ratings - Source

Electronic controller with resistance bulb sensor keeps temp, variations to a minimum. ... Model 5660, by Zenith Radio Research Corporation, permits taking motion pictures of highspeed objects in enclosures opaque to visible light. ... Standard controls include indicating thermostat, pilot light and 3- heat selector switch. ... Manual or automatic control permits 2 cps/sec sweep of 5 to 60 cps freq range.

Title:Environmental Quarterly
Publisher: - 1961


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