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 {TAIL ~ transformer} T. The emitter electrode of NPN transistor Q1 and {HEAD ~ 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 { TAIL ~ transformer } T. The emitter electrode of NPN transistor Q1 and { HEAD ~ the emitter } of electrode of NPN transistor Q2 are grounded , as shown
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