| Manufacturer | Part Number | Description |
|---|---|---|
Siemens Semiconductor Group (now Infineon) |
E283CC | Doppeltriode |
Philips Semiconductors (now NXP Semiconductors) |
E283CC | S.Q. Tube |
|
Philips Semiconductors (now NXP Semiconductors) |
E283CC | Special Quality Long Life Double Triode |
