AMPTATA 2pcs Octal 7pin Tube Saver Ceramics 5654W 6J1 6J2 6J3 6J4 6J5 6K5 6AQ5 6X4 6Z4 6AU6 EF95 EZ90 EAA91 EF91 6GK5 EC92 ECC91 Amplifier Vacuum Tube Protect Tube Pin Socket Saver

2pcs Amptata Octal 7pin Tube Saver Ceramics 5654W 6J1 6J2 6J3 6J4 6J5 6K5 6AQ5 6X4 6Z4 6AU6 EF95 EZ90 EAA91 EF91 6GK5 EC92 ECC91 Amplifier Vacuum Tube Protect Tube Pin Socket Saver

Docooler 6K4 Preamp Vacuum Tube, for 6AK5/6AK5W/6Zh1P/6J1/6J1P/EF95 Pairing Tube, Amplifier DIY Preamp Vacuum Tube,2PCS

Fosi Audio 7-Pin 5654W Tested/Matched Vacuum Tubes Substitute for 6AK5 6J1 6J2 6J1P EF95 Preamplifier Tubes (2PCS)