RCA Electronic Tube 6DX8 NOS In Original Box ~ Tested

RCA Electronic Tube 6MD8 In Original Box (NOS)

RCA Electronic Tube 6MQ8 NOS In Original Box ~ Tested

RCA Electronic Tube 6MG8 NOS In Original Box ~ Tested

RCA Electronic Tube 6MJ8 NOS In Original Box ~ Tested

RCA Electronic Tube 6LB8 NOS In Original Box ~ Tested

RCA/Sylvania 6MD8 Electronic (Vacuum) Tube (NOS) Original Box (2 in package)

RCA Electronic Tube 6BY8 NOS In Original Box ~ Tested