Recently, I burned out the circuitry in a florescent lantern by accidentally reversing the polarity of the volts in. The circuit seems pretty simple, a transformer, 3 resistors, 3 mono capacitors, a 100uf electrolytic capacitor, a 5609 transistor (it exactly says 5609 5C C EBC) and a small diode. I am wondering how I can test the components on this and identify which one to replace. I know the transformer works because I put a power supply on one end and a neon bulb on the other, and the bulb flashed when I added power for a second. I also tested the diode with a digital multimeter and got 620 ohms one way and insulating the other, so i am guessing the diode works. So this leaves the transistor and the capacitors. I am most likely sure that the transistor is the failed component, but I have no idea how to test it, and see what is wrong with it. I am guessing that the transistor is used as an oscillator for the transformer to get the right voltage for the bulbs and thus no oscillation means no light. So how can I test the remaining components (especially the 5609 transistor) so I can see what to buy and replace so I don't have to buy a whole new Lantern.
I know I was stupid messing with it and burning it out, and I should have just kept it to its 6 D battery power supply, but I am only 14 and any information will help!