Plug Play NOVIB Socket Saver©-1960s NOS British McMurdo Phenolic socket on Top plus Vibration Reduction Base - 9-pin B9A NOVAL -( NOT MADE IN CHINA) with my setup)

with my setup)

Plug pins are exact size of a typical NOS OCTAL tube for snug fit

Old Shield M8214 in front and CV4035 on the back

Labels are in mint condition due to perfect bulk storage

Midrange: the midrange response on these tubes is wonderful

Plug Play NOVIB Socket Saver©-1960s NOS British McMurdo Phenolic socket on Top plus Vibration Reduction Base - 9-pin B9A NOVAL -( NOT MADE IN CHINA) with my setup)Top part is Brand New 1960s British Made McMurdo Phenolic socket. Anti vibration Base* has silicone to reduce microphonics. Tube pins are exact size of a typical NOS Philips tube for snug fit, unlike cheap Chinese bases with thinner pins that wobble in the sockets. Engineered in house and precision manufactured for us with high quality materials.*all damping methods based on increased mass have limitations. It may or may not be very effective in your