TWO Amperex 7025 tubes (Quiet / low noise version of ECC83 12AX7). Tested on Amplitrex AT-1000 tube tester (fixed bias mode). BIG O getters / Big Halo / Holland Halos. Bugle Boy logos excellent. Tubes test at 1700, 1800 and 1700, 1900 where pass/fail is 1040 micromhos.
Welcome to my personal site. Everything here is only for my personal usage. No public interest.