SK‑182* Physical Characteristics
| Number of Pins: | 16 |
| Pin Circle Diameter: | 11.4mm (0.450") |
| Pin Diameter: | 0.76mm (0.030") |
| Pin Spacing: | 15 × 21.5° |
| Alignment Method: | Pin Gap, 1 × 37.5° |
NOTES:
* I do not yet know any correct designation for this tube base type; "SK‑182" is the part number of a compatible socket.
Pins are shown as looking at the base of the tube; i.e. "bottom view" for the majority of tubes with this base. (Top view for inverted side‑viewed tubes.)