6p13p推挽胆机,6p13p单端功放

details about 6n1 or 6n2 push 6p13p single-ended class a tube
论坛 69 论坛技术讨论专区 69 胆机diy论坛 69 用什么管子diy
直接耦合推挽功放电路原理图
details about 6n1 or 6n2 push 6p13p single-ended class a tube
论坛 69 论坛技术讨论专区 69 胆机diy论坛 69 6p13p超线性这样