1set Class A Single Ended 6550 Tube Audio Amplifier DIY Kit. This is only one set kit, you need to assembled by yourself. Enjoy DIY. 5pcs tube sockets. Input Impedance: 100Kohm. Input Sensitivity: 500--2000mV.
2pcs ShuGuang 6550B Vacuum Valve Tube Amplifier Matched Pair New Version. ShuGuang factory 2024 year new upgrade version. Type : 6550B.
2pcs ShuGuang 6550B Vacuum Valve Tube Amplifier Matched Pair New Version. ShuGuang factory 2024 year new upgrade version. Type : 6550B.
2pcs ShuGuang 6550B Vacuum Valve Tube Amplifier Matched Pair New Version. ShuGuang factory 2024 year new upgrade version. Type : 6550B.
2pcs ShuGuang 6550B Vacuum Valve Tube Amplifier Matched Pair New Version. ShuGuang factory 2024 year new upgrade version. Type : 6550B.