A fluorescent light headache is a type of headache triggered by fluorescent lights. This may also be a symptom of photophobia, a condition that describes sensitivity to light. Fluorescent lights are ...
About the CD4049 there are contradictional info’s. My data book from 1981 states that pin 16 is “3 to 15 V but more than at pin 1 ” and it works fine when connecting them (voltage is equal). The infos ...
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