brown-black getter flashing does not mean ‘Used’!
Discolored getter flashing (brown or black marks) does not mean that a tube was used. This fiction is believed by both uninformed buyers and seasoned tube jockeys. This myth seems credible because some new tubes have perfect shiny mirror getter flashing; therefore the assumption is that brown or black stains in the getter flashing must […]
brown-black getter flashing does not mean ‘Used’! Read More ยป