TK16
Headphoneus Supremus
Thanks got 4 for $23.68 total, got a pair of this sellers ECC81 to ECC88 adapter, pretty solid.I haven't seen any others. I do always make sure to get the ones that have ceramic rather than plastic though, as they tend to last longer.
These have been pretty solid so far. Had them for months.
https://www.ebay.com/itm/1-x-Gold-ECC83-12AX7-12AU7-6CG7-EL84-6BQ5-6BQ5-plated-tube-socket-saver/283165860505?ssPageName=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649