Selling the last pair of RCA 12AX7A short grey plates in my NOS stash. Purchased from KCA or Hi-Test I can’t remember which exactly. These are my favorite tubes in a BF Fender circuit. Excellent clarity and sparkle that really makes a BF shine.
They are indeed stellar examples. The main reason I kept these last as backups is because they’re from 1962 I believe. Had a pair of NOS 1962 RCA branded Silvertone 12AX7A in my Super Reverb (V1 and V2) and they were killer.