Vintage Tubes & Tubes Sockets

This is a matched pair of Dutch made philips miniwatt 12AX7 ECC83 and were made around 1966. They have the small getter ring with The test for an ECC83 12AX7 in an AVO 163 is 1.2/1.6 each side. These test as new and balanced at this level.

These have the xf1 codes and the double OO Getters. They were all tested on my Hickok TV-7 tube tester with scores of 43, 44, 49, 50 and 51. A minimum score for value on these tubes would be 30 so these tubes are full of life at 85 to 100%.

Here is a tested sleeve of NOS General Electric JAN 12AX7 ECC83 tubes. All tubes test as new. Due to age sold "AS IS".

This is a lot of 16 6SN7GTB, 6SN7GTA, and 6SN7GT tubes. All tested on calibrated TV-7D/U and Hickok 600A tube testers for Gm, Gas, and Shorts. All tested good with 50 being the minimum on the TV-7D/U tester.

I HAVE MORE PREAMP TUBES LISTED NOW.

This is a matched quad of 6CA7-Z / EL-34 Shuguang Treasures with approx 50-60 hours on them - so not even broken in. Currently matched quads for these aren't available. These are widely considered the benchmark for EL34 tubes.

Th ese tubes were tested in my Military Hickok Cardmatic to make sure these were perfect. All the tests were excellent. All 4 of these tubes are stamped made in Germany, for Hammond. They will significantly improve the sound quality of your amplifier.

Quad of GE 6BQ5/EL84 tubes, labeled for RCA, with original boxes (a couple of the boxes are a bit rough). Nearly a perfect Gm match between three of these tubes, with the fourth about a 12% match. The stamp is very similar to the chalky paint that tube manufacturers used, and as such, it is removable if rubbed with sufficient force.

The 1940s Sylvania 2A3 tubes in this precisely matched quad have black plates and bottom dish getters with lots of flashing. The green print on the bases has the early Sylvania leaf logo. Matched for current draw = 48.0, 48.0, 48.8, 50.5 mA and transconductance = 4880, 4910, 4950, 5000 Gm.

OUTSTANDING QUALITY GE BLACKPLATE TUBES - DOUBLE THICK MICAS - NEW IN BOX AND I CAN MATCH A PAIR TO WITHIN 5% GM PER TRIODE, PER TUBE! DISCLAIMER: I CANNOT WARRANT HOW TUBES WILL SOUND, PERFORM OR GENERATE NOISE IN YOUR ENVIRONMENT AND APPLICATION.