Part Number: 12SK7GTY (No description) Part Number: 12SK7-JAN (Tube) Part Number: 12SK7M (Ne) Part Number: 12SK7MET (Ne) Part Number: 12SK7Y (Electron tube) Part Number: 12SK7YJAN (Ge) Part Number: 12SL-14-1BE (Stud) Part Number: 12SL1U (Ne) Part Number: 12SL1U1 (No description) Part Number: 12SL2GT (Vacuum tube) Part Number: 12SL6 (Electron tube) Part Number: 12SL7 (No description) Part Number: 12SL7GT (Electron tube) Part Number: 12SL7GTJAN (Component)