| Manufacturer | Part Number | Description |
|---|---|---|
| Shuguang | 12AU7 | Compactron Tube |
Ei
| 12AU7 | A.F. Double Triode |
| Unknown Manufacturer | 12AU7 | (12AU6 / 12AU7) MINIAURE DOUBLE TRIODE |
MAZDABELVU
| 12AU7A | Double Triode |
| Unknown Manufacturer | 12AU7 | DOUBLE TRIODE 12-6V INDIRECTLY HEATED |
Ei-RC
| 12AU7 | Double Triode |
| Unknown Manufacturer | 12AU6 | (12AU6 / 12AU7) MINIAURE DOUBLE TRIODE |
| BRIMAR | 12AU7 | Receiving Valve |
RCA
| 12AU7A | Twin Triode |
