jeijeierekutoronikku has been founded in the category: capacitors, amplifiers, vacuum tubes to produce them to the manufacturer. 3 different they grow to only been vacuum tubes to produce even today there are more than 20 kinds of type on the market. Manufactured using only ingredients that passed the rigorous standards of vacuum tubes are each and assembled with precision, youll sound your keys and each process parameters (tested for leaks and features, an internal vacuum level, filament voltage/current, etc.) and the shipping in the USA.