TUNGSOL 5751 - Always good to try as a 12AX7 replacement, especially in guitar amps in V1. They can really chill out HiFi set ups, too and seem to have more harmonic content than the equivalent 12AX7.
New Production RUSSIAN - MAXIMATCHER tested - Lower gain ECC83 for that S.R.V tone.
Warning: Last items in stock!
MAXIMATCHER tested prior to dispatch.