Branded Telefunken
Pinched Tip
- Code On Tube
- I63 B8A3
- Country
- Great Britain
- Factory Code
- B - Mullard, Blackburn, B - Mullard, Blackburn
- Getter
- O-Getter Halo
- Getter Support
- One
- Glass Color
- Clear Glass
- Mica
- Double
- Other Marks
- Marked Made in Germany, but etched code points to Blackburn UK., Marked Made in Germany, but etched code points to Blackburn UK.
- Permanentid
- 4rzcnom2
- Pin Color
- Silver
