Electronics > Beginners

Help with troubleshooting simple transistor switch circuit

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yaun:

--- Quote from: GerryR on January 17, 2020, 11:50:31 am ---I think Magic hit it on the nose.  From the remote release units that I have looked at, they use a "stereo-type"  3-wire plug, which would imply plus, return and signal out.  Looks like you may be trying to switch the supply line to ground.  Just a guess without knowing the actual camera you are using.

--- End quote ---

tip to ground is shutter, and ring to ground is focus on all of the cameras that I have.

Even if I unground the emitter from the circuit ground and only connect ce to camera or dmm, I get the same results.

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