Please note, TV7 data minimum is equal to 60%. For example, (insert model number here) min value 60. If the tube tests at minimum 60, that is equal to 60%. The number over (/) is the minimum test data result as described in the TV7 DU tube testing manual. So 60/ (min) 60 = 60%

1. 50/31 PC 33.7

2. 53/31 PC 34

I mark all my tubes, so please don't waste your time seeking to send me back your old dead tubes.

All testers read differently. I have sought to have my tester as accurate as possible. I will not be giving partial refunds because you have received different test result.

All tubes will be shipped well, an example of how I pack is pictured in the listing. (obviously these tubes are not included)

I wont be lying on a customs form

I combine shipping. If the tubes are of significant value, the postage will be extra due to insurance.