JJ Electronic ECC83S / 12AX7S Vacuum Tube Discontinued *American made thumb wheels and

*American made thumb wheels and posts are sold separately (SKU # R1PTW509)

(Direct Replacement for the Marshall® JTM45)

Princeton® is a registered trademark of Fender Musical Instruments Corporation

32 yards of conductive copper shielding tape used to reduce hum and interference

JJ Electronic ECC83S / 12AX7S Vacuum Tube Discontinued *American made thumb wheels andSpiral filament, frame grid 12AX7. One of the most reliable tubes made today. Well balanced with even distortion. If you're not sure what type of 12AX7 you need, get this one! ECC83S is a 12AX7 high gain pre amplifying double triode. Thanks to its design it also peforms with very low noise and microphonics. Harmonically rich, with a detailed low end and a warm high end. Gain % as compared to 12AX7 : 100% 30 day warranty against manufacturing defects.