Tungsram by Mullard 12AU7 K61- Code On Tube
- K61 R5L
- Country
- England
- Factory Code
- R - Mullard, Mitcham
- Glass Color
- Clear Glass
- Mica
- Double
- Permanentid
- gjy1kdgw
- Pin Color
- Silver
- Plate Color
- Matte Gray
- Plate Look
- Ribbed / Scale
- Plate Size
- 17mm
- Tip Shape
- Pinched Tip
- Year
- 1965
Branded
