Hi
Is there any good class ab amp designs in public domain which can be used commercially with out paying royalty ?
Is there any good class ab amp designs in public domain which can be used commercially with out paying royalty ?
Only very old designs found by googling.
Copyright is only on the novel part of the design, not layout and expires 70years after the death of the inventor.
Have a look at the early RCA solid state class Ab designs. They should be copyright free.
Copyright is only on the novel part of the design, not layout and expires 70years after the death of the inventor.
Have a look at the early RCA solid state class Ab designs. They should be copyright free.