Tube tests: 86, 86, 86, 82 %.
Item Tag: 19T8
19T8 Granco by GE Vacuum Tube, TV-7D Tested – will combine shipping
Granco made by GE. Triode Tested at 51. Vacuum Tube. sections of a single tube. Within 3% I consider to be ‘Balanced’. Clean tubes will radiate heat better & operate cooler. Test results will differ between various testers for many reasons such as technical design, aging components, etc.