Tube 12AX7 ECC83 Electro Harmonix 12AX7EH
Best 12AX7 made today. Same as ECC83
Electro Harmonix 12AX7EH tubes...Same as Sovtek.
Forget about Telefunken. The 12AX7EH provides high gain with ultra low noise and 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.
"Very linear, has great looking curves...large full sound stage, very musical with great detail...smooth and involving" --Charles Kittleson, Editor, Vacuum Tube Valley