I test all tubes thoroughly and with great care. I test to the best of my ability, and I report all results honestly.
Amperex 12AX7A/ECC83 Heerlen Red Tip MaxiPreamp2/TV-7 tested (1) tube lot
I test all tubes thoroughly and with great care. I test to the best of my ability, and I report all results honestly.
Strong Japan Made Short Gray Plate O Getter 12AX7A / ECC83 Tube – 122/120
Tube passed ALL tests. MADE IN JAPAN. MINIMUM reading is 70%, NEW (NOS) reading is 100%+. This is very important! We strive to make this happen!
(2) RCA Silvertone 12AX7A ECC83 Short Gray Plates Halo Getters Test Strong TV-7U
(2) RCA Silvertone 12AX7A ECC83 Vacuum Tubes | Short Gray Plates | Halo Getters.
1 Mullard 12AX7 ECC83 Vintage Electronic Preamp tube
Regulations prohibit such behavior.
Strong Realistic Lifetime by Matsushita GOLD PIN 12AX7A / ECC83 Tube – Japan
Short Gray Plate 12AX7A / ECC83 Tube. Tube passed ALL tests. Made in JAPAN. This is very important! We strive to make this happen! Sold as is as Pictured as Described.
12AX7A ECC83 Hammond Mullard Tube Ribbed Short Plate Tested 110% 1300/1200 T26
The product is a vintage Hammond Mullard 12AX7A ECC83 vacuum tube, made in the United Kingdom. This particular tube has a ribbed short plate and has been tested at 110% of its original performance, achieving a testing result of 1300/1200. A classic and sought-after piece for vintage audio enthusiasts, this tube is sure to enhance the sound quality of any vintage audio system.
MULLARD 12AX7/ECC83 LONG PLATE BVA SHIELD LOGO AUDIO PREAMPLIFIER TUBE
Good used MULLARD BVA ECC83 / 12AX7 long plate , shield logo tube. Dual support square getter. Manufactured in Great Britain at the Mullard Blackburn facility. Production date code : B7A. Tested on military TV7 tube tester. With 32 being minimum reading for a good tube , this tube reads 32 (minimum for good) / 46. FREE U.S. SHIPPING ! Thank you for looking !!!
*PREMIUM* Matched Quad (RED TIP) 1963 Raytheon 12AX7A Tubes Amplitrex Tested
I just removed these tubes from their original amplifier last week. They were placed in a Baldwin organ in 1963 and never touched until I removed them. Baldwin only used the best tubes in their organs and you will not find any better tubes than these.