http://groups.yahoo.com/group/techlibdotcom/ techlib.com Sat, 31 Oct 2009 13:45:48 GMT Jim http://groups.yahoo.com/group/techlibdotcom/message/915 http://groups.yahoo.com/group/techlibdotcom/message/915 ... That's pretty slick. Building a jig for measuring and testing zeners has been on my list. I was thinking of using one of the regulator ICs as a current Fri, 30 Oct 2009 18:23:05 GMT petros0022 http://groups.yahoo.com/group/techlibdotcom/message/914 http://groups.yahoo.com/group/techlibdotcom/message/914 Hi all I make a diode zener tester I saw it for this website http://users.otenet.gr/~athsam/Diode_zener_tester.htm Here i have all the project Wed, 28 Oct 2009 15:38:23 GMT CharlesW http://groups.yahoo.com/group/techlibdotcom/message/913 http://groups.yahoo.com/group/techlibdotcom/message/913 Just about any NPN darlington will work. For lower current bulbs, use a MPSW45 and for higher currents, use a darlington in a T0-220 package. You can also use Tue, 27 Oct 2009 05:24:03 GMT Charlie , W5COV http://groups.yahoo.com/group/techlibdotcom/message/912 http://groups.yahoo.com/group/techlibdotcom/message/912 Gerald , can you upload the schematic to the photo section of the group ? Charlie Tue, 27 Oct 2009 05:10:43 GMT gerald barra http://groups.yahoo.com/group/techlibdotcom/message/911 http://groups.yahoo.com/group/techlibdotcom/message/911 here's the diagram: Show off your style with new cool skins.Try the all-new Yahoo! Messenger 9.0 today! http://ph.messenger.yahoo.com Tue, 27 Oct 2009 05:03:49 GMT gerald barra http://groups.yahoo.com/group/techlibdotcom/message/910 http://groups.yahoo.com/group/techlibdotcom/message/910 i need a transistor for my project "Game show buzzer", i already have the diagram and the only problem is the transistor, it has no specific value and neither Mon, 26 Oct 2009 22:49:59 GMT CharlesW http://groups.yahoo.com/group/techlibdotcom/message/909 http://groups.yahoo.com/group/techlibdotcom/message/909 I use that trim for all sorts of stuff. You can iron on that trim, by the way. Most of it has hot melt glue on the back. There is also a product called Mon, 26 Oct 2009 13:45:26 GMT petros0022 http://groups.yahoo.com/group/techlibdotcom/message/908 http://groups.yahoo.com/group/techlibdotcom/message/908 Yes charles it is very practical and easy,with a very low cost the material,personal i had it all . Today i put and tape all arround to the wood for look more Mon, 26 Oct 2009 03:43:47 GMT CharlesW http://groups.yahoo.com/group/techlibdotcom/message/907 http://groups.yahoo.com/group/techlibdotcom/message/907 That's way too organized for me. Half the fun is trying to find the end of the solder while holding the iron in one hand and the circuit in the other. : ) Sat, 24 Oct 2009 09:53:43 GMT petros0022 http://groups.yahoo.com/group/techlibdotcom/message/906 http://groups.yahoo.com/group/techlibdotcom/message/906 Hi all I build a base for cored solder wire All the project it is here http://users.otenet.gr/~meteo/project_base-cored-solder-wire.html And a small video Mon, 19 Oct 2009 13:53:14 GMT Eric Tv http://groups.yahoo.com/group/techlibdotcom/message/905 http://groups.yahoo.com/group/techlibdotcom/message/905 Can anyone tell me which manufacturers of white LED's use the YAG: Ce phosphor to produce the white light? I know there must be lots, but I am finding the Fri, 16 Oct 2009 16:56:41 GMT petros0022 http://groups.yahoo.com/group/techlibdotcom/message/904 http://groups.yahoo.com/group/techlibdotcom/message/904 Hi again I up load and a video from today thunderstorm at Athens http://www.youtube.com/watch?v=sG2kCnEyCUM Best regards from Greece Dimitris Mon, 12 Oct 2009 17:48:42 GMT petros0022 http://groups.yahoo.com/group/techlibdotcom/message/903 http://groups.yahoo.com/group/techlibdotcom/message/903 Hi again I make a rain detector from this website http://www.techlib.com/electronics/raindetectors.htm Finnaly the electronic design ,it have a small problem Mon, 12 Oct 2009 10:09:07 GMT petros0022 http://groups.yahoo.com/group/techlibdotcom/message/901 http://groups.yahoo.com/group/techlibdotcom/message/901 Hi all I build this circuit http://www.techlib.com/electronics/graphics/rainsch.gif from this page http://www.techlib.com/electronics/raindetectors.htm I use Mon, 05 Oct 2009 15:22:52 GMT petros0022 http://groups.yahoo.com/group/techlibdotcom/message/900 http://groups.yahoo.com/group/techlibdotcom/message/900 I make a test if all work good ,touch with my finger the antena,for you see how work it ,before i use it at real lightning strikes (Thunderstorm day)