Description： Brand new 8-pin Octal Vacuum Tube BaseMaterial: BakeliteDiameter: 33mmHeight: 17.60mmDiameter of pin: 2.4mmSuitable for 6550,EL34,6N8,KT88,6L6,6CA7 etc. Package Included： 5 x Base Socket Saver AdapterOn Feb 21, 2023 at 23:51:07 PST, seller added the following information: