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Last Updated on: Tuesday, June 01, 2021 03:06 PM

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More  Bistable Multivibrator or Flip/Flop Circuits
Camera Circuits   Timer Circuits

 

DARKROOM CAMERA SHUTTER TIMER


This circuit was designed to control a film exposure shutter for a darkroom. It has 8 time steps ranging from 0.35 seconds to 4 seconds. It is activated by a foot switch and draws power from an external 12-volt DC supply.

Click on Circuit Below to view PDF of Schematic

Camera Shutter Timer, David A. Johnson, P.E., June 11, 2000

More  Bistable Multivibrator or Flip/Flop Circuits
Camera Circuits   Timer Circuits

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