Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 exptools 1/6/84; site ihu1g.UUCP Path: utzoo!watmath!clyde!burl!mgnetp!ihnp4!ihu1g!fish From: fish@ihu1g.UUCP (Bob Fishell) Newsgroups: net.bicycle Subject: LOUD horn! Message-ID: <421@ihu1g.UUCP> Date: Mon, 11-Jun-84 15:17:11 EDT Article-I.D.: ihu1g.421 Posted: Mon Jun 11 15:17:11 1984 Date-Received: Tue, 12-Jun-84 01:01:43 EDT Organization: AT&T Bell Labs, Naperville, IL Lines: 23 (oo) I have a recipe for an electric horn that is at least as effective as a freon horn and has the added advantages of being permanently installed and not quickly exhausted. Radio Hack sells "low current buzzers" in the 6-volt and 12-volt sizes. Get TWO of the 6 volt ones. Connect them in parallel. Each of the buzzers has a tuning screw in the back. Turn one of these to the right so as to alter the pitch. Connect these buzzers to TWO 9-volt batteries hooked up in series, so as to provide an 18-volt supply to the buzzers via a pushbutton switch. I mounted mine on the front reflector tongue; many other arrangements are possible. Battery life is more than a year (with alkalines). This horn is extremely loud, loud enough to cause pain in the ears if you're a couple of feet away and right in front of the diaphragms. It's guaranteed to make joggers jump, even when they're blasting their Walkmans at maximum volume, and can be heard inside any car. -- Bob Fishell ihnp4!ihu1g!fish