archive

archive vacuum tubes

Tube images

Pinout and connections

Base: Wires Wires only. (8 pin)

PinFunction
1g1
2a
3h
4ic
5nc
6h
7k
8ic
Technical notes
  • Subminiature triode with T3 subminiature bulb; 5 flying wires from the base.

Electrical data

Filament

Filament voltage Vh
6.3 V
Filament current Ih
0.15 A

Maximum ratings

Maximum anode voltage Va max
250 V

Datasheet PDF

PDF Language Pages Manufacturer
6K4.pdf en 2 Sylvania
6K4.pdf zh 4 Shuguang

EL84 ECC83 12AX7 EL34 6L6GC 300B KT88 GZ34

123,962 Catalog valves
19,493 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.