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Tube images

Pinout and connections

Pinout diagram

Base: B9A - Noval, 9 pin miniature (USA pico-9) (9 pin)

PinFunction
1a(1)
2ic
3k
4h
5h
6ic
7a(2)
8ic
9ic

Electrical data

Filament

Filament voltage Vh
6.3 V
Filament current Ih
1 A

Substitutes

Equivalent types

Other available variants

Datasheet PDF

PDF Language Pages Manufacturer
EZ81.pdf 1
EZ81.pdf 2
EZ81.pdf cs 4 Tesla
EZ81.pdf de 2 Radio Frequency Transponder
EZ81.pdf en 6 Philips
EZ81.pdf fr 6 Mazda Belva
EZ81.pdf fr 2 The Radiotechnique
EZ81.pdf de / fr 18 Philips

EL84 ECC83 12AX7 EL34 6L6GC 300B KT88 GZ34

123,885 Catalog valves
19,464 Stored valve datasheets

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.