it looks like the 555 timer sets the time base for voltage "stepup coil". Some call this thing a kickback regulator. The cool thing about those is the same circuit can develop any voltage either above or below the supply voltage. it looks like trigger timing is adjustable, but no mention of how adjustable (the range is unknown, and no, I did not even try to calculate it). this one is the better one so far due to the circuit board layout is done already (THAT is the BIG timesaver)..
jg On Mon, 2008-10-27 at 20:23 -0700, George Bearden wrote: > Fella last week posted the links to some DIY stuff, I looked em all over. > One (IIRC) ran on 12v and had an adjustable frequency. Didja guys see that? > I haven't priced a commercial unit but this one looked very do-able. I read > the description and schematic, but that was 'then'. It has a 555 timer chip > in it, and I saw an adjustable pot, so I am thinking it is an adjustable > rate. > > http://www3.telus.net/chemelec/Projects/Strobe/Strobe.htm > > GeoB > > > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html
