Hey there, I lately rebuild a Sugden A28II, after i recived it with several burned resistors in the left channel, but also defective transistors on both.
After rebuild everything worked fine, but I probably messed up, setting the left channel bias way to high, so one of the output transistors blew up.
Since, i again changed every transistor, diode and capacitor, even if they wasn t defective as I measured them.
But I can t adjust the bias, it is at a constant high of 1,2A and rising, till it blew the transistor which is marked in the scematics.
Could anyone help ?
After rebuild everything worked fine, but I probably messed up, setting the left channel bias way to high, so one of the output transistors blew up.
Since, i again changed every transistor, diode and capacitor, even if they wasn t defective as I measured them.
But I can t adjust the bias, it is at a constant high of 1,2A and rising, till it blew the transistor which is marked in the scematics.
Could anyone help ?
