Hi Wayne-Thanks for the information. That helps clear things up.Elizabeth brings up some very good points. In addition, I'd like to add that if the environment contains potentially explosive fumes, you'll need to use explosion-proof switches. This is not something to be taken lightly. If in doubt, BE SAFE. Ask for help from a local expert who can come to your site.If you do decide to build this yourself, here's a schematic:
As long as you are not dealing with a potentially explosive atmosphere, you can use ordinary wall switches, or if you prefer small surface mounted switches, you can get something like THIS.I'd like to suggest that instead of 24 volts, use 12 volts. The reason for my recommendation is that 12 volts is normally used for burglar alarms, so there are lots of inexpensive options for beacons (strobes) and power supplies. For the beacon, you might consider a Seco-Larm LED strobe. They also make strobes that use xenon flashtubes. They're usually under $10.For the power supply, a 12 volt 1 amp "wall wart" will do nicely. Here's an example.For the wire, I suggest 4-conductor 22 gauge solid "station wire". You only need two conductors. If it's a really long run, parallel two sets of two wires.All of these parts are available at your local burglar alarm wholesaler or online.
Let us know if you have more questions. Above all, PLEASE BE SAFE!
-Rick
