handmade ECC99 TO 6H30 Vacuum Tube socket Adapter
handmade tube socket converter
if you choose this adapter, means you want to put your ECC99 tube
on the adapter to connect to the 6H30 amplifier socket
1PC handmade ECC99 TO 6H30 Vacuum Tube socket Adapter
handmade ECC99 TO 6H30 Vacuum Tube socket Adapter
handmade tube socket converter if you choose this adapter, means you want to put your ECC99 tube on the adapter to connect to the 6H30 amplifier socket