Branded Marconi
Pinched Tip
- Brand Extended
- The Marconi Co. Ltd.
- Code On Tube
- I63 B
- Country
- Great Britain
- Factory Code
- B - Mullard, Blackburn, B - Mullard, Blackburn
- Getter
- O-Getter Halo
- Getter Support
- One
- Glass Color
- Clear Glass
- Mica
- Double
- Permanentid
- vfowot0v
- Pin Color
- Silver Pins
- Plate Color
- Matte Gray
