This is my first post so I will provide a little introduction. I'm from South East Tennessee and have recently retired. Back in the 70's I was a supervisor in a GTE switching office. GTE put me through four months of "Electronics" school but when I got to my office everything there was electromechanical. I knew a lot about relays, but that was about it. Now that I have the time I want to tinker with some of the solid state stuff. Enough said, now for my question.
I have constructed various 555 timer circuits and all work as they are supposed to however, they all require a single pulse to start the timing operation. I want to actuate the 555 in monostable mode with input from a relay but all I can do is give it a constant +voltage or ground. Without the single pulse it just continues to trigger itself. Can it be triggered and run normally with a constant input? If so, I would appreciate any assistance.
I have constructed various 555 timer circuits and all work as they are supposed to however, they all require a single pulse to start the timing operation. I want to actuate the 555 in monostable mode with input from a relay but all I can do is give it a constant +voltage or ground. Without the single pulse it just continues to trigger itself. Can it be triggered and run normally with a constant input? If so, I would appreciate any assistance.