You must wait for a minute for it to stabilize.So in order to get higher amplification from lower power supply (20V) I've placed a multiplier to step up the DC voltage. Then a regulator to keep the voltage fixed and stable. Then a simple class A voltage amplifier with a swing of 48V pk-pk from only 23V (after a normal rectification) power supply. It's only a concept and this has no practical use because the drawn power is immense compared to the useful output power so the efficiency levels are veeeery low. So bottom line experimentally and educationally this does the job but has no practical use in real life.
