archive
archive vacuum tubes
archive
archive vacuum tubes
Tube images
Pinout and connections
Base: B9A - Noval, 9 pin miniature (USA pico-9) (Codex=No 15)
- Maybe there were technical problems - maybe in connection with the new base (and/or bulb T-6-1/2)?
Electrical data
Filament
Coupled filament configurations
- Filament voltage Vh
- 6.3 / 12.6 V
- Filament current Ih
- 0.3 / 0.15 A
Maximum ratings
- Maximum anode voltage Va max
- 300 V
- Maximum anode dissipation Pa max
- 2.75 W
- Maximum cathode current Ik max
- 0.02 A
- Maximum filament-cathode voltage Vhk max
- 180 V
Substitutes
Datasheet PDF
| Language | Pages | Manufacturer | |
|---|---|---|---|
| 12AU7 (2) | 4 | ||
| 12AU7.pdf | 5 | ||
| 12AU7A.pdf | 5 | ||
| 12AU7.pdf | en | 16 | Mullard |
EL84 ECC83 12AX7 EL34 6L6GC 300B KT88 GZ34
How to use the Valve Archive
EnryLab Valve Archive allows you to search for PDF datasheets and technical documentation by entering the exact code of a vacuum tube. Enter codes such as EL84, ECC83, 12AX7, 6L6GC, or 300B to view variants, manufacturers, and documents available in the technical archive. The search uses exact matches, thus avoiding partial or irrelevant results and making it easier to find the correct datasheet.
Datasheet PDF and frequent searches
The most searched acronyms have dedicated and indexable pages, with clean URLs and linked documentation. You can start with frequent searches to quickly consult the most used valves in the audio, radio, and technical restoration fields.