8mm standard length gold pins and 12mm high 6GH8A socket. Really mini tube converter adapter. Ideal for preserving tube sockets and pins.
Simply plug these adapters into a socket that is designed for a 7199 tube and insert a 6GH8A tube into the adapter. This is intended to ease the transition to the inexpensive 6GH8A tube from the expensive and hard to find 7199 tube. This will work for any tube amp that uses the 7199 tube.