已经找到yaesu ft-950连接非yaesu功放的标准答案
the ft-950's linear socket pin 2 connects to the al-811's rca center pin and the linear socket pin 3 connects to the amplifier's chassis. the amplifier's alc rca center pin is connected to the ft-950's linear socket pin 9 and the chassis ground is connected to the linear's socket pin 3.