D.J. said:
Hi,
Thanks for the quick response, I think I understand.
I read about SCR before I made the changes and it looked resonable. I had no need for the relay to stay on, I just wanted it to come on when the transmitter was activated. And since the transmitter was using a transitor, I wanted the recievr to also.
So you are saying that the SCR is their so it can detect the slitist change in currrent. But since the coil was already negative I would need a very strong signal to change the polarity right?
Sorry if these are some stupid questions, I'm fourteen and just got into electronics, so bear with me!