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Slide Projector Auto Advance

2017-08-15 15:10  
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A 4001CMOSQuad NORgate is set up as an astable multivibrator, which drives a simple differentiator and relay driver. Depending on the setting ofS2, a delay of 5 to 30 seconds is generated. S2 and Rl through R6 can be replaced by a single 10-Mohm pot, if desired.
 

Slide Projector Auto Advance 
 

 

 



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