Audio Component Preamplifiers

HiFi KT88 KT88/C Vacuum Tube Replaces 6550 KT88 for HiFi Audio Vintage Tube DIY Matching Pair of Four Tubes(4pcs Matched Quad)

Vacuum Tube Rectifier 5AR4 Vacuum Tube Replace 5Z3PA GZ34 5U4G 274B 5R4 U77 5Z4PA HiFi Audio Vacuum Tube Amplifier Matched(1pcs)

Vacuum Tube Rectifier KT66 GE/GC Electronic Tube Replacement KT88/6L6 Vacuum Tube(Kt66 Ge,1 pcs)

Vacuum Tube Rectifier Vacuum Tube 845-TII Collection Version for HiFi Audio Valve Electronic Tube Amplifier DIY Matched(1pcs)

EL34 EL34C Vacuum Tube Replaces EL34B KT77 5881 6L6G 6CA7 HiFi Audio Tube AMP Amplifier kit DIY(2pcs Matched Pair)

Electronic Tube EL34 EL34-Z EL34Z Vacuum Tube Valve Upgraded Version 5881 6L6 6P6P 6CA7 KT77 EL34C Electronic Tube(2 pcs)

Vacuum Tube Rectifier A+R+T 845 Vacuum Tube Upgrade WE845 E845 845B 845T HiFi Audio Valve Electronic Tube(2 Pcs)

1/2/4PCS 805A Amplifier Audio Tube(OneColor)