Hi all, It looks great to me too! I couldn't have done better. Cheers, Don At 02:50 PM 10/3/03 +1200, you wrote: >Diagram looks fine to me, no tabs. In Pegasus mail press F12 and it toggles >monospaved view > >On 2 Oct 2003 at 18:42, Jim Tellier wrote: > >> This ASCII art apparently contains TAB characters, and is (like most >> attempts) totally unintelligible without saving it off and >> manipulating it. If (by some chance) it Doesn't contain tabs, then >> it;s been compromised in some other way by the cut/paste process. Use >> characters if you want someone to spend the time to look at >> your diagrams. It will save everyone a lot of time. Jim ----- Original >> Message ----- From: "Olin Lathrop" To: >> Sent: Thursday, October 02, 2003 12:49 PM >> Subject: Re: [PIC]:High Voltage problems help >> >> >> > > PIC16F628 >> > > ______ >> > > | | >> > > | | >> > > LED | | >> > > | | | >> > > gnd___|/|______|b2 | >> > > |\| _____|b3 | 5V >> > > | | |______| | >> > > | | >> > > | B|/ C >> > > |_______________| TIP42C >> > > |\ E ||c________1 >> > > |_______________c||c >> > > c||c >> > > c||c >> > > c||c >> > > | c_________2 >> > > -- -- >> > > - - >> > > - >> > >> > You need a diode from ground to the emitter of the transistor (anode >> > to ground, cathode to emitter). The transformer primary is an >> > inductor, and will try to make very high voltages if you try to stop >> > the current suddenly. The negative spike is probably causing >> > considerable current to flow thru the BE junction, then thru the >> > protection diode in the PIC. This can have all kinds of bad an >> > unpredictable effects. >> > >> > >> > ***************************************************************** >> > Embed Inc, embedded system specialists in Littleton Massachusetts >> > (978) 742-9014, http://www.embedinc.com >> > >> > -- >> > http://www.piclist.com#nomail Going offline? Don't AutoReply us! >> > email listserv@mitvma.mit.edu with SET PICList DIGEST in the body >> > >> >> -- >> http://www.piclist.com#nomail Going offline? Don't AutoReply us! >> email listserv@mitvma.mit.edu with SET PICList DIGEST in the body > >-- >http://www.piclist.com#nomail Going offline? Don't AutoReply us! >email listserv@mitvma.mit.edu with SET PICList DIGEST in the body > -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body