Hard to find, very nice new old stock Philips ceramic chassis mount B8A type sockets for European 8 pin miniature tube types with side nub in glass (so called "rim lock" style), such as ECC40 , EF40 , EZ41 , etc. Many tubes that fit in these sockets are nice NOS European stock of types that are equivalents of 9 pin types that are usually much more expensive (example, EF40 is similar to EF86).
Sockets fit a 3/4 inch (19mm) hole, mounting hole centres are 1 1/8 inch (28.5 mm) apart.
Price is per socket. Limited quantity of this item available. This item is shipped from Britain, in North America or Asia please allow 2 to 3 weeks for delivery.