the old style mechanical ringer is much better than any new electronic device at piercing through ambient noise so you can hear the phone ring - here's a link to one I'm selling for a friend (I have such a thing already in my garage, so I don't need it)
Just a note to anyone else who runs across one of these...
If you go straight across the phone line with external chimes, make sure you have it hooked up through the ringer capacitor - "A" and "K" terminals on the network inside. Without a ringer capacitor in series with the coil you'll pull the phone line off-hook.
You might find it wired for local ring supply from a KSU, and they would take the capacitor out of the circuit for maximum volume.
I need a ringer that would ring at 120 VAC, 60 Hz, I want it to make a very unpleasant sound. I would like to add it to this thumper so that I do not forget to turn it off.
Ned, thank you!!! I found item 56525T26, which suits my needs perfectly! I am going to order some minor stuff from them soon, this will be a great thing to order along with the rest.
I have a big alarm system bell. In fact I have the whole alarm system new in box with the picture of Telly Savalas with his trademark lollipop. The cellophane is torn but the box has never been opened. Has
6 contacts and wiring and transformer. This would seriously alert you.
The other issue is a continuous loud or high pitched noise is extremely distracting. Do you *really* need anything that may lower your effective IQ when working with equipment that is this dangerous?
Personally, I'd take a carefull look at the control circuits and see if it would be possible to fit a key switch of a type that keeps the key captive in the ON position then keep the key on the same ring as my house keys. Since I then wouldn't be able to lock up the outbuilding or get back into the house, the chance of me leaving it on would be ZERO. If you do this, it would be worth getting a couple of spare switches keyed the same for anything else you think is too dangerous to risk leaving active, and seal *ALL* the spare keys except the one on your keyring in an envelope and pop them in the safe. It also has the side benefit that the risk of friends and relatives getting a Darwin award from messing with your stuff in your absence is much reduced.
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