Path: utzoo!utgpu!water!watmath!uunet!umbc3!alex From: alex@umbc3.UMD.EDU (Alex S. Crain) Newsgroups: unix-pc.general Subject: Re: That mystery 4th LED... Message-ID: <672@umbc3.UMD.EDU> Date: 2 Jan 88 04:46:53 GMT References: <172@bacchus.UUCP> Reply-To: alex@umbc3.UMD.EDU (Alex S. Crain) Organization: University of Maryland, Baltimore County Lines: 17 In article <172@bacchus.UUCP> darren@bacchus.UUCP (Darren Friedlein) writes: >anyone know where I can get a relay with a 1.5V coil (at this point I They make these little 3 wire foobies calles transistors that work real good to amplify stuff. sounds like you need one of those. Seriously, what you need is a transistor, a couple resistors, a relay, and a 9v battery (or whatever.) the transister boosts the 1.5v signal to drive the relay, and viola!, you have power. I havn't done electic stuff in a couple years, so I can't tell you the values, but you should get every thing you need fron "Intro to electronic circuits" or its equivelent ($5 from radio shack). -- :alex. alex@umbc3.umd.edu