Groove tube 12ax7 r3

Used 12AX7LPS in great condition. Purchased in 2019 for amp testing. Used for a few hours only. The Sovtek 12AX7LPS is a long plated spiral filament dual triode. High gain, and low noise, is nicely balanced all around - not bright. Players with combo amps or those who like to play on max volume may want to reconsider, as the 12AX7LPS can be prone to microphonics (due to the long plate). The Sovtek 12AX7LPS is the same tube as the Groove Tubes 12AX7R2. The long plate makes it great in the phase inverter spot, a position which can impact the overall feel of your amp. Avoid these in high voltage cathode follower(CF) spots, these cannot withstand prolonged high voltage. Large Plate SP 12AX7 Very linear with large, detailed sound Made in Russia