An All-Electronic Counter for Projection and other Film Uses

Don V. Kloepfel

This paper describes an all-electronic film footage, frame or scene counter, with features not usually found in projection-room counters. The method of obtaining a large visible read-out, instant zero-set and other features, without noise or heat-producing components, is noted. A brief description of electronic beam-switching tubes is included.

Print ISSN
Published
1957-07
Content type
Original Research
DOI
10.5594/J13880