JJ Tesla
PM Guitar Tubes valvole selezionate (matched) con caratteristiche specifiche per gli amplificatori per chitarra matched tubes specific for guitar amplifiers (e.g. Marshall, Mesa Boogie, Fender, Crate, etc..)
KR Audio Electronics Tubes
NOS TUBES clicca qui /click here
National Westinghouse Philips Miniwatt RCA ITT General Electric Mullard USA, Fivre Sylvania JAN Philips ECG UK - British Army
Teonex - England Sonotone Brimar Siemens TELEFUNKEN EIMAC ....e molte altre..
