I noticed not any surface mounted caps. in this unit. From what I've heard and seen, surfaced mounted caps were always failing. The top end of these machines was phenomenal well above 20KHZ. I used to do a lot of recording at 15 ips.
Great, tell me how you applied the inscriptions. Is it a stencil or something else? I have erased the inscriptions on Akai GX 77, I don’t know how to restore it.