voltage regulator using zener diode

voltage regulator using zener diode

9V Regulator low current Supply

mini power supply regulator give friends try out again. Be fixed voltage regulator 9V size. It uses transistor be pillar equipment perform boost up current tallly go up about 300mA. And by have Zener Diode perform steady voltage at 9Vdc. The detail is other a friend sees in the circuit please yes



http://www.elecfree.com/electronic/9v-regulator-low-current-supply/