Hewlett PackardAmperex
12AX7A
| Brand on Tube | Hewlett PackardAmperex |
|---|---|
| Real Tube Manufacturer | Amperex |
| Country | Holland |
| Etched code on Tube | I65 / ⊿H3 |
| Factory Code | ⊿ - Philips, Heerlen |
| Tip Shape | Pinched Tip |
| Glass Color | Clear Glass |
| Mica | Double |
| Getter | O-Getter Disk |
| Getter Support | One |
| Plate Look | Ribbed / Scale |
| Plate Size | 14mm |
| Plate Color | Matte Gray |
| Pin Color | Silver Pins |
Pinched Tip
