that site is bookmarked and this look promising. i have gone with this value according to the detail and what is available on ebay. chose this resistor and this diode. do you have any comment on the gate and where to get non IC?
You are relying way too heavily on the simulation. + Remove the 12V 10W bulb from the sim circuit. Your not going to operate a 10W 12V bulb with a 9V battery. @ 9V to obtain 10W you will need more than 1A of current and the 9V batery can not manage this.
Zener Regulator Calculator
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