2A3C是曙光电子管厂的一个改良版本,对业余玩家来说是一个超值的“鱼与熊掌”兼得的靓管,顾及了300B的神韵力道和2A3的娇艳迷人。为了提高电性能和分离度,也便于摆放,焊机的方案采取了两分体的设计思路,且所有的变压器设计成内藏式,嵌入机壳内部。机壳外面只露出三个胆管,异常 2A3C is a modified version of the dawn of the tube factory for amateur players is a great value for the “fish and bear’s paw” both have pretty tube, taking into account the charm of 300B and 2A3 charming charm. In order to improve the electrical properties and resolution, but also easy to display, welding program adopted a two-part design ideas, and all the transformers designed as a built-in, embedded in the chassis. Only exposed outside the casing three bile duct, abnormalities