Exporting Shuguang tube and Full music tubes. 12AX7/12AX7B/7025/ECC83/B339 12AU7/ECC82/CV491/B329 12AT7/ECC81/CV455/B309 6SL7GT/6N9P/ECC33 6SN7GT/6N8P 6P14/EL84/6BQ5 KT88/KT88-98/CV5220 KT94 KT100/KT100A EL34/EL34B/6CA7 EL156 6550/6550A-98 6L6GC/6L6GCR/6P3P/5881/6L6WGB 350B/350C 6V6GT/6P6P 300B/300B98/300BA/300BC/300BS 2A3 211/VT4C 845/845B/845C 5AR4/GZ34 5U4G/5Z3P/5Z3PA 572B 5Z4P/GZ32/5Z4 6Z5P/6X5 6Z4 6N13P/6N5P/6AS7G/6080 FU811/811A FU812/812A FU813/813A FU5/805 FU7/807 Fu-46/6146B 50CA,6LF6 ,6N1,6K4,6J1,6J4,6A2,6E2,6P1,6N7P,6J8P,6P17P,6J4P 6A7P 101D/n 102D/n 205D/n 2A3/n 300B/N 300B/N+ 45/n PX4/n PX25/n 274A/n 274B/n Other, each one have : ceramics base + gold pin