B&K
| Brand on Tube | B&K |
|---|---|
| Real Tube Manufacturer | Amperex |
|
|
|
| Country | Holland |
| Etched code on Tube | I63 Delta1B3 |
| Factory Code | ∆ - Philips, Copenhagen |
| Tip Shape | Pinched Tip |
| Glass Color | Clear Glass |
| Mica | Double Mica |
| Getter Support | One |
| Plate Look | Ribbed / Scale |
| Plate Size | 14mm |
| Plate Color | Matte Gray |
| Pin Color | Silver Pins |
