Branded Mullard
Round Tip
- Base
- Black
- Bottle Height
- Half
- Bottle Shape
- Skinny Bottle
- Code On Tube
- 5K2 B3D1
- Country
- Great Britain
- Factory Code
- B - Mullard, Blackburn, B - Mullard, Blackburn
- Getter
- Bottom Getter
- Glass Color
- Clear Glass
- Mica
- Double
- Permanentid
- 1arnvrd3yr
- Pin Color
- Silver Pins
- Plate Color
- Matte Gray
- Plate Look
- Ribbed / Scale
- Tip Shape
- Round Tip
- Year
- 1963
