Tubes for Instrument Amps

TELEFUNKEN E88CC-TK (6922) Preamp Tubes

TELEFUNKEN GZ34-TK Rectifier Tubes

Orange Amplifiers Valve Tester MKII

Ruby 6V6GTSTR Power Vacuum Tube

Mullard 12AT7 Preamp Tube

MESA/Boogie 6L6 GC STR 448 Power Tubes Matched Pair

MESA/Boogie 6L6 GC STR 445 Power Tubes - Matched Duet

Ruby ECC83/12AX7A Preamp Tube

Groove Tubes GT-12AY7 Select Preamp Tube

Tung-Sol 5881 Matched Power Tubes