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A simple R - C timer using a cold cathode trigger tube

H A B Simons

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INSTRUMENTAL NOTES

A circuit is given for an R - C timer using a cold cathode trigger valve type Z803U which will give timing intervals continuously variable from 1/5 second to 2 minutes. The maximum variation of any timing interval that occurs under normal working conditions can be expected to be of the order 1%.


PACS

84.47.+w Vacuum tubes

84.30.Bv Circuit theory (including computer-aided circuit design and analysis)

84.30.Sk Pulse and digital circuits

Subjects

Electronics and devices

Dates

Issue 1 (July 1957)



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