| Manufacturer | Part Number | Description |
|---|---|---|
Siemens Semiconductor Group (now Infineon) |
E288CC | Doppeltriode |
Philips Semiconductors (now NXP Semiconductors) |
E288CC | Special Quality Long Life Double Triode |
Philips Semiconductors (now NXP Semiconductors) |
E288CC | S.Q. Tube |