View single post by Slider2732

Posted: Nov 29th, 2008 11:27 AM

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Slider2732

Joined:	Mar 3rd, 2008
Location:	Muskogee, Oklahoma USA
Posts:	349
Status:	Offline

Thanks Joe. What i'm finding is that 555's usually only begin reliably operating around 4V, spec sheets are usually a little conservative, but not quite conservative enough. Apart from CMOS ones, of which I have none left, my others are of the higher voltage type. 5V to 9V circuits and others would work well...it's just the starting point I have that seems to negate such good practical methods.

I read somewhere of an LED driver from just a single 1.5V cell, that could work down to 0.2V or something amazing. I think 2 FET's were used similarly to switching power supplies in that instance and might be able to be rejigged. Got about a dozen MPF102's, so that could be worthy of a look at again.