Pair Ken-Rad 12BA7 Vacuum Tubes Pentagrid Converter TV-7 Tested NIB NOS

Sylvania 18FX6A Pentagrid-Converter Vacuum Tube Tested Free Shipping

1-CBS 6BL7GT Vacuum Tube NOS/NIB Amplitrex Tested Black Plates [] Getter 3-Mica

6BE6 Pentagrid-Converter (Heptode) Vacuum Tube Tested

3BA6 CBS Pentode Vacuum Tube - NOS - TESTED

Vintage NOS RCA, CBS, GE 12BA7, 9 Pin Pentagrid Converter Electronic Tube

1D7G CV765 Marconi Radiotron Vacuum Radio Tube Pentagrid-Converter NOS (x1pc)

5915 RCA Pentagrid Vacuum Tube - NOS - Computer/RF Apps Hickock 539B Tested Good