NOS OPEN BOX SYLVANIA GB 5814A TUBE . CHECKS GOOD. FREE SHIPPING TO THE LOWER 48 STATES CHECK OUT ALL PHOTOS
Item Tag: 12AU7
-
(2) MATCHED NOS/NIB GE 12AU7A 5814A Green Print Tubes ~ 1965 Military Stock!
12AU7A 5814A Green Print Tubes. Grey plates with solid halo getters. These are also known as a 12AU7/ECC82 tube type. The printing on both tubes is in superb condition as seen in the photos. This is a high quality, military spec tube that was manufactured under the tightest of tolerances.
-
(2) NOS GE JG-5814A 12AU7 Mil-Spec Tubes 3X Micas HS Getters Tests NOS
(2) NOS GE JG-5814A 12AU7 Mil-Spec Tubes 3X Micas HS Getters.
-
Matched Pair GE JG-5814A (12AU7) Grey Plate 3X Mica Mil Spec Tubes TV7 Strong
Both tested NOS and closely matched in a professionally calibrated TV7U tube tester with the following results (56 is minimum): Tube 1- 96/96 Tube 2- 98/96
-
2 SYLVANIA Gray Plate O Getter JAN 5814A Tubes, Maxi-Preamp II Tested NOS SM1356
Gain (NOS Value=17 mu) 17.0 mu 17.6 mu. Gain (NOS Value=17 mu) 17.8 mu 17.5 mu. Tested on a Hi End Maxi-Preamp II tester for Gain (Mu), Transconductance (Gm), and Noise (dB).
-
One Amperex Bugle Boy 12AU7/ ECC82. One Labeled Elect. for Medicine.
Pair of Amperex 12AU7/ECC82. where minimum is 50. Tube 2: 96/86 etched code >2D4.