Mullard
M8137CV4004
| Brand on Tube | Mullard |
|---|---|
| Country | Great Britain |
| Etched code on Tube | 641 R6K2 |
| Factory Code | R - Mullard, Mitcham |
| Year | 1966 |
| Tip Shape | Pinched Tip |
| Glass Color | Clear Glass |
| Mica | Double |
| Getter | O-Getter Halo |
| Getter Support | One |
| Plate Look | Boxed Plate |
| Plate Size | 14mm |
| Plate Color | Matte Gray |
| Pin Color | Silver Pins |
| Special Use | KB - UK Military |
| Notes | KB/QDD Mark K = specification K1001 or K1006 B = approved by UK authority |
Pinched Tip
