Yes, 7809s are the easiest , but not cheap$ or easily buyable...except
MABE the high$ shack . Definately use a heat sink it approaches hot to
touch when running under full load !!! ( whatever reg or xsistor you
use )

tim

"Brian Lund" wrote in message . dk...
Use a 7809 Voltage regulator

Maybe a little heatsink should be used also, there will be generated 3W of
heat


Brian