Hey,
I find myself in need off the service manual of the Hokushin SC-10 including the electric scheme of the amplifier.
Thanks in advance

A bit of rare one there Thijs, but hope you will be assisted by some kind soul here with what you are seeking.

As its rare, you may also find the other forum helpful for such matters where there is, to be fair, far more member's than we have here yet.

I only found it for sale ... Van Eck has the manual and someone also had the repair manual when I searched. I think it was quite expensive (almost 30 GBP I think for the repair manual) and a tenner or so for the manual