Accession Number : AD0701638

Title :   PRECISION INTERVAL TIMER TO CONTROL THE OPERATION OF DATA PROCESSING EQUIPMENT,

Corporate Author : SIGNALS RESEARCH AND DEVELOPMENT ESTABLISHMENT CHRISTCHURCH (ENGLAND)

Personal Author(s) : Roots,K. G. ; Smith,D. A. ; Williams,J. M.

Report Date : JUL 1969

Pagination or Media Count : 18

Abstract : The precision interval timer consists of a crystal controlled oscillator set to generate 100 KHz, which is then repeatedly divided using bistable circuit blocks. Positive and negative pulse outputs are produced at precisely known time intervals which may be varied from 40 sec. to 0.1 sec. in nine steps. 'Normally open' and 'Normally closed' relay outputs are also available at one tenth the frequency selected above. (Author)

Descriptors :   (*DATA PROCESSING, *TIMING CIRCUITS), CRYSTAL OSCILLATORS, LOGIC CIRCUITS, GREAT BRITAIN

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE