A classic project : HIRAGA 30 WATT CLASSE A CLONE..
A fantastic sound comes out of this class A amplifier, revised in the choice of components that is modern and easy to find.
To power this amplifier, a transformer with a 24-0-24vac secondary of at least 300VA is required, with a minimum filtering of 80000uF.
The absorption or bias is regulated by two 47k 1watt resistors which must be replaced with two 33k resistors to obtain at least 1 Amper of absorption.
To adjust the offset, the 500ohm trimmer must be adjusted until about 0vdc is obtained at the amplifier output with load connected.
max power out...30watt /8ohm
