Brand New Electro-Harmonix 12AX7 Single Tube 
The Electro Harmonix 12AX7 provides high gain with ultra low noise and a detailed, musical tone that rivals the most desirable NOS types. Unique spiral filament eliminates filament to cathode induced hum common on amps that use AC on the filaments!

Our Testing Policy 

At Tonal Tubes we test preamp tubes using an instrument that allows us to test tubes for gain, transconductance, and noise, at real world voltages that would be seen in a guitar amp or hifi amp. We test every single tube that we receive to make sure it matches our standards. All tubes are also checked for shorts and leakage on a separate tube tester to ensure that all tubes will work flawlessly in your equipment.

Why You Should Do Business With Us

• Every single tube is checked for shorts and leakage on a calibrated Eico 667 tube tester

• Comes with original packaging straight from the factory, as shown in the picture

• Very competitive prices

• Fast shipping

Shipping

• Tubes will be shipped with USPS First-Class Mail

• Most orders are shipped within 24 hours

• Tracking information is included for every purchase

Return Policy 
Customer satisfaction is our #1 priority. If you are not pleased with your purchase you may return your item for a refund up to 30 days after purchase. 

About Us 
We are musicians who crave awesome tones. We all know that swapping out tubes can be one of the more effective ways of improving your tone. At Tonal Tubes, we help you achieve that next level tone.