Pair of rca 12AT7

First tested at 4600 and 4700gm. Min 3600

87 and 88 /100

Second 2500 and 3600

78 and 82/ 100 (slightly weak)

Third 3200 and 3500

78 and 86 / 100 (slightly weak)

All Tested in circuit in an amplifier for sound.