Hi I am currently building the SC200 power amplifier. A lower AC voltage of 30-0-30 transformer can be used by reducing Q7 collector resistor to 15kohms and reduce the 2 collector resistor of Q6 to 4.7koms as detailed in the magazine. I have a slightly lower voltage transformer 25-0-25 V AC. Will the component changes work with my lower voltage transformer or will I need to reduce the resistances further and change any others??.
Can anyone help.