[This article was first published in Army Sustainment Professional Bulletin, which was then called Army Logistician, volume 2, number 4 (July–August 1970), pages 18–21. The text is reproduced as ...

A requirement for every hospital, emergency power generators must be operational in 10 seconds or less when electric utility power is lost. If a backup generator fails, the lives of hospital patients ...

Previously-known schemes for RC rectangular pulse generators with a regulated duty cycle had an ineradicable disadvantage: changing the pulse fill factor (D) inevitably changed the frequency of ...