Hey guys, Just won an auction on eBay for a 'lightly used' vintage telefunken 12ax7. I was on a quest looking for a nice tube to put in the V1 of my Fargen Blackbird. Looking for an RCA initially, I ran across this telefunken and ended up winnning the auction at $33. It has the diamond telefunken logo intact on the tube. Is this a reasonable price? Is it comparable to a NOS or aNOS RCA for a fender type amp? Any input would be appreciated!