6v6 5s2d 6v6gt cv508 tube NOS Fivre Italy pair tubes power valve strong 1950's
2 tubes 6V6 Fivre made in Italy
tested twice.
test results with tube tester TV7
tube 1 = 80 (reference good at 46)
tube 2 = 84 (reference good at 46)
Test with Tube tester Funke W19S,
tube 1 = 38mA (reference good at 18mA)
tube 2 = 39mA (reference good at 18mA)
rare tubes strong emission
box 174