6v6 5s2d 6v6gt cv508 tube NOS Marconi Italy one power tubes strong 1950's amp
label on glass 14th of August year 1953
selected for military employ
ONE tube 6V6 Marconi NOS with own box made in Italy tested twice
test results with tube tester TV7 , tube 1 = 90 (reference good at 46)
Test with Tube tester Funke W19s = 42mA ( reference good at 18mA)
rare tube strong emission
box 175