boxe Viaggio fantasma 6em7 tube Indovina Le Alpi vittoria
6EM7/6GL7/6EA7 Double Triode Tube. Section one diode is a medium mu vertical direction oscillator and section two diode is a low mu vertical deflection amplifier. MFR: RCA, Sylvania. SKU: 6EM7. New old
6em7 6ea7 tube NOS GE preamp tubes valve otl amplifier test strong 3 piece | eBay