GE JG-12AX7 NOS Tube – 1950s - Long Gray Plates, Copper Grid Posts, Horseshoe Getter, Balanced Sections

This listing is for one (1) brand new 1950s NOS NIB GE JG-12AX7 tube, featuring:

• Long Gray Plates
• Balanced Sections
• Copper Grid Posts
• Horseshoe Getter
• NOS - NIB - TESTED NEW
• White Stencils

Testing Results:

• Transconductance (Gm): Measured at 2,000 and 1,900 micromhos for each triode, respectively, surpassing the average new value of 1,500 micromhos.​
• Current Draw (mA): Tested at 1.6 mA and 1.5 mA for each triode, indicating strong and balanced performance.​
• Quality Assurance: Verified to have no shorts, leakage, or noise, ensuring optimal functionality.​

Packaging:

• Comes in its original box

Perfect for:

• Fender Champ Reissue (1957)
• Fender Deluxe Reverb (1964)
• PrimaLuna ProLogue Five Integrated Amp
• Rogue Cronos Magnum
• Conrad Johnson Gear
• Various Guitar Amps & Hi-Fi Applications

Vintage GE JG‑12AX7 – A True Collector’s Gem
Experience the unparalleled warmth and clarity of a 1950s GE JG‑12AX7 tube—a true testament to early tube engineering. With its long gray plates, copper grid posts, and distinctive U‑shaped getter, this tube embodies the military‑grade “JG” designation (an early form of JAN), guaranteeing robust performance and exceptional tonal character. Revered by audiophiles and collectors alike, it delivers a rich, dynamic sound with reduced microphonics and clear, articulate detail. This is a rare opportunity to own one of the oldest and best-sounding 12AX7 tubes available, perfect for elevating your vintage amp's performance.

SKU C3-4 87750963