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SINGLE_FRAME_TV_PHOTOGRAPHY_TIMER

2014-11-11 20:16  
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SINGLE_FRAME_TV_PHOTOGRAPHY_TIMER
Uses four thyratrons to switch on picture tube for exact 1/30th-sec interval required to complete two interlaced fields and give clean photograph for open-shutter still camera. Vertical drive pulses from tv sync generator provide time-reference triggering. Stabilized high-voltage supply minimizes defocusing.-A. A. Tarnowski and K. G. Lisk, Timer Shutters CRT for Single Frame Photos, Electronics, 31:15, p 83-85.