No 1F5G Marconi NOS amplifier audio radio vacuum tube valve ST shape 1F5 canada

2 Marconi Radiotron Type 38 NOS Vacuum Tube - AVO Tested - Vintage Radio Audio

General Electric GE ST bottle 2A6 NOS ST bottle NOS Beam Power Audio Tube - 1

1F7G ST Marconi Radiotron Radio Tube Double Diode-Pentode Audio NOS (x1pc)

Type 38 Marconi NOS ST Bottle Power Audio Tube Pair

1- NOS PHILCO 50C6g audio BEAM POWER TUBE Big ST Bottle

Marconi USA Type 25BK5 Beam Power Audio Pentode NOS/NIB (#108210)

1H6G Marconi Vacuum Radio Tube Dual Diode Triode Audio NOS (x1pc)