Amperex JAN 6688 Gold Pin Dark Plate 3 Mica 539C Test NOS NIB🔈
USD 16.50 USD
Specifications
| Brand | Amperex |
| Model | 6688 |
| Country Of Origin | United States |
Amperex (USA) JAN 6688 Gold Pin Dark Plate 3 Mica Vacuum Tubes 539C Tested NOS NIB. Strong NOS! Gas (Grid Current)Test: Passed. Mutual Conductance (GM)Test: 93.6 (72 = NOS AVERAGE & 47 = Good MINIMUM).
Related Items
Vintage Lindal 6GV8 ECL85 Vacuum Tube Nos Nib Unused Japan
SYLVANIA 6SN7GTB Triangle Plates Brown Base AUDIO VACUUM TUBE Tested 2.1517-D
2 NOS Sylvania 6CL6 Vacuum Tubes 7.5-Watt Power Pentodes for Vintage Ham Radios
RARE 6CD6GA 6CD6 Vintage Vacuum Tube NOSÂ (TESTED W/ TV-7D/U)
Raytheon CK-5783-WB Gas Diode
Vintage Amperex EF91 / 6AM6 Electron Vacuum Tube #3
2 NOS Sylvania 6677 6CL6 Vacuum Tubes – Power Pentodes for Amateur Radios
GE 6SN7GTB Vacuum Tube Tested NOS/NIB Coin Base