Quote:
Originally Posted by michael
... I think just pin 7 of u4 (4066B) should go to +4.5V with a jumper...
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Excuse me I correct my purpose was -4.5 V.
Quote:
Originally Posted by Geo
Who is the size of the file ? If it is smaller than 250kb then try to rename it.
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the size is 174 Kb, and tried every thing; renaming .. and other trickes, didn't work.
Ecxact now, my EE friend called and told he has input frequency up to 4N35 and after that has no output to 555 he has done every thing. He told there is a point or problem and has no info of 4N35 features. If you lead us what should have done will be appreciated.