used but good pair of sylvania 6sl7wgt

fairly well matched.

Tested on a Dan Nelson Calibrated TV-7D/U

minimum good is 32 and these tested:

Tube 1:
Triode 1: 48 Plate 1: 5.3
Triode 2: 47.6 Plate 2: 5.3

Tube 2
Triode 1: 48 Plate 1: 5.3
Triode 2: 50.1 Plate 2: 5.5

not responsible for improper use.

NOTE!

Your test scores may vary, and is not a acceptable reason for returns refund.