More particularly, the voltage produced by the voltage source Vs is fed to the collector of electrodes of a pair of switching transistors Q1, Q2 through the primary winding of center tapped step up transformer T. {HEAD ~ The emitter electrode} of {TAIL ~ NPN transistor Q1} and the emitter of electrode of NPN transistor Q2 are grounded, as shown 
More particularly , the voltage produced by the voltage source Vs is fed to the collector of electrodes of a pair of switching transistors Q1 , Q2 through the primary winding of center tapped step up transformer T. { HEAD ~ The emitter electrode } of { TAIL ~ NPN transistor Q1 } and the emitter of electrode of NPN transistor Q2 are grounded , as shown
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