- Code On Tube
- k66 ⊿8C
- Country
- Holland
- Factory Code
- ⊿ - Philips, Heerlen, ⊿ - Philips, Heerlen
- Getter
- D-Getter
- Glass Color
- Clear Glass
- Mica
- Double
- Permanentid
- 4xly54ik
- Pin Color
- Silver Pins
- Plate Color
- Matte Gray
- Plate Look
- Ribbed / Scale
- Plate Size
- 14mm
- Tip Shape
- Pinched Tip
- Year
- 1968
