run a 220 Volt light bulb on a 9 Volt battery - win or fail?
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For this project, I used one inverter transformer and a CCFL (cold-cathode fluorescent lamp) from an old LCD monitor.
The 2 transistors are NPN, type BD737 from a (very old) old cassette player.
The 2 resistors are 82 Ohm (grey-red-black) and 1/4th Watt.
I think almost any NPN transistor in this package should do the job.
It has a BCE pin-out.
On a full 9 volt battery, I got around 750Volt but the battery was draining fast.
For the schematic diagram I used this one: