Labels:book | bulletin board | daily | reckoner | sky | windowpane OCR: BULLETIN from: TRIO KENWOOD COMMUNICATIONS INC SUBJECT Theory of Operation DG-5 DATE 2-8-78 The DG-5 is dynamic display type frequency counter A11 this means is that fewer wires and decode dri vers are needed for frequency displayi ing shal1 start the exp ana tion of the DG-5 with the reference osc 021 This opera ion ircuit of the provi ides DG-5 the The timing ten MHz pul Ises ref cal osc ibrat ion divi ided and 1/10 scann by ing IC5 pul to ses for provide calibrated one MHz out tput then further divided by IC6 and IC7 1/100. The signal then passed thru IC8 which cons ists of two secti ions 1/5 and div der The divi ide by 1/5 sect ion now gives resul tant 2KHz ignal on output This is the scann ing pulse IC40 rece ves the scann ing pul wh ich 91 ives an output i7 mod fied : code Then 1AA7 ...
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