I tried to repair an srm-1 mk2 with new transistors but it failed probably because of fake chinese transistors.Could any one suggest modern available transistors to replace the old ones.Alternatively could the output stage be changed to tubes which I could fit in a larger case.If not is there a...

Thanks for letting me know the right place to put the question.

Hi,can anyone help with problems I have with a first version of the srm1 mk2 amp.The offset stays around -120v and adjusters have virtually no effect and the balance of the right channel stays around -30v with adjuster having hardly any affect.I have changed all the electrolytic caps but not the...

Hi,can anyone help with problems I have with a first version of the srm-1 mk2 stax amp.The offset stays around -120v and adjusters have virtually no affect and the balance of the right channel stays around -30v with adjuster hardly changing this voltage.I have changed all the electrolytic caps...