Marconi
ECC83B339F91
| Brand on Tube | Marconi |
|---|---|
| Real Tube Manufacturer | Mullard |
| Country | Great Britain |
| Etched code on Tube | F91 B8I |
| Factory Code | B - Mullard, Blackburn |
| Year | 1958 |
| Tip Shape | Pinched Tip |
| Glass Color | Clear Glass |
| Mica | Double |
| Getter | O-Getter Halo |
| Getter Support | One |
| Plate Look | Ribbed / Scale |
| Plate Size | 17mm |
| Plate Color | Matte Gray |
| Pin Color | Silver |
Pinched Tip
