This is the 3rd day now I've tried to post on this subject. My internet connection sucks, but I will keep trying.
OK, I have used axial caps in the place of radials and vice-versa, just make sure the polarity is correct, and that your voltage is at least equal to or higher than the old cap.
Again, make sure polarity is correct or you will get a very LOUD surprise as it suddenly decompresses or does whatever is does.
If the leads will reach, then it should work.
Please post a photo of the so called security coil...?
I think maybe we should do some posting on how the system works, with the reset of payboard after every coins' worth of pay. It should be interesting for all of us, and frankly I get a brain fart over parts of it.... But collectively we can sleuth it out.