(NOT MADE IN CHINA) IS NOVIB-OCTAL-GE-CINCH AN UPGRADE OR BETTER the NOVIB-OCTAL GE-OMRON JAPAN version? - NO both are similar in quality. Just another flavor with Cinch USA top Versus OMRON Japan.LIMITED EDITION - Since we could find only limited number of brand new NOS socket and plug components, this is a limited edition run of about 500 pcs. No more after this. Sockets in your expensive gear can become loose with repeated insertions and expensive to replace. Loose sockets can be a source of variety of sonic and electrical problems. This Plug & Play, OCTAL-NOVIB Socket Saver© with 1960s NOS GE USA Bottom Plug Part and NOS CINCH USA Top Socket Part and Vibration Reduction Base is a perfect solution. Top plug and bottom socket parts are Brand New NOS for snug fit, unlike cheap Chinese bases with thinner pins and flimsy sockets. Engineered in-house and precision manufactured for us with high quality materials overseas. *all damping methods based on increased mass have limitations. It may or may not be very effective in your application. Compatibility List: Universal OCTAL socket saver for all tubes with OCTAL bases like EL34, 6550, KT88, GZ34, 6SN7/6SL7, 6V6, 6L6, 5881, GZ32, 5Y3, 5V4 ETC. ETC. NOVIB-OCTAL-GE-CINCH Socket Saver© = $38 Orders OUTSIDE USA, recommend ordering more than one or adding other tubes to the order to save on shipping. We charge flat shipping fee of $10 for orders OUTSIDE USA for most countries with any number of items.