Anyone needing repair of the classic Yamaha (1974-1990 or so) stereo equipment I advise you to check out Clinique Audio Service. The shop is run by Patrice and he just helped me with restoring my Yamaha C1 preamp. I was very impressed with his knowledge and perfectionism to detail. I had just about given up hope that my C1 would ever run again. It’s now totally functional! Thank you to Clinique Audio. For more contact info just search the records for Clinique Audio here in AudioKarma! You won’t be sorry.