TWO Ei 12AX7 Vacuum Tubes/Amplitrex Tested/90% Umhos/50-65%mA/ Telefunken Smooth

The umhos test strong 90-100%, but the plate current tests approx 50-65%. Tested on Amplitrex AT-1000 tube tester (fixed bias mode). Two Ei 12AX7 tubes.

eBay