| Manufacturer | Part Number | Description |
|---|---|---|
RCA |
6AU6 | Sharp-Cutoff Pentode |
GE |
6AU6-A | Pentode |
| BRIMAR | 6AU6 | R.F. Pentode |
| Unknown Manufacturer | 6AU6A | Pentode |
|
RCA |
6AU6-A | Sharp-Cutoff Pentode |
MAZDABELVU |
6AU6 | Pentode |
| Unknown Manufacturer | 6AU6 | Pentode |
