Great site about tuners and fixing tuners.
On the site, is a link to
Michael Zuccaro and Don Scott who modify and fix tuners.
Another guy whose great at fixing tuners, tube and solid state electronics and speakers is Terry Dewick. He is really knowledgable. He's also does great mods. His website is
His email address is
Also, check out this Japanese site about tuners. There's a site, where you can convert the Japanese language into english.
when your on the site, under webpage, put in this site.
Then put Japanese to English right below it. Then click on Translate.