In SX Microcontrollers, SX/B Compiler and SX-Key Tool, edlikestoboogie wrote:

I am using the SX with the lowest internal clock setting, I think it was 4 khz, should use minimal power that way.  bennetdan.. those transformers, are way too big.  I use to buy these wall transformers that allelectronics.com sold for 3 dollars a piece.  They layed an output of around 5v at around 100-200 ma and they were really small.  You know the typical tiny little wall warts that are the size of a zippo lighter, that usually power up and charge your cell phone.  I would crack them open and integrate the small circuit into my own.  The actual coil transformer was literally, smaller than half my thumb.  Anyone know any surplus places that still sell these type of wall warts for < $3.  I should have bought a bunch of them while I had the chance.

Gunther mentioned that I can operate the SX at 3.3v.. How about 3v? http://www.allelectronics.com/cgi-bin/item/DCTX-31/815/3VDC_100MA_WALL_TRANSFORMER_.html  At $1.25 a piece, not bad!, but only if it would work with the SX.  This one is a little bit bigger than the one i mentioned, judging from the reference I am making with the plug it has,, but its dirt cheap..

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