RCA 12AX7 Matched Pair, Gray Plates, Halo Getter, Hickok Tested

This is a used RCA 12AX7 tube, tested good on a pair of Hickok 533A testers. 

Each box is marked with the Gm readings for that tube.  Readings are made after each tube had a ten minute warmup.

All tested values are in the "good Gm" range for a 12AX7 tube. 

This pair of tubes will ship safely and quickly from Mississippi.

SKU RB78