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6C2C — Triode-Hexode, Octal | Tubeofile
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6C2C
Triode-Hexode — Octal
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Known Equivalents & Substitutes
No known equivalents. If you know of any, use the ⚑ Report Issue button above.
Similar Tubes (Not Drop-In Compatible)
6K8
Western triode-hexode frequency converter with Octal base — similar function but different internal design
ECH81
European triode-heptode frequency converter — similar function, different base (Noval)
Electrical Specifications
Section 1 — Triode (oscillator)
Typical Operating
Anode Voltage (typical)
Anode Voltage
100
V
Transconductance
Transconductance
2.5
mA/V
Section 2 — Hexode (mixer)
Typical Operating
Anode Voltage (typical)
Anode Voltage
250
V
Screen Voltage (typical)
Screen Voltage
100
V
Transconductance
Conversion Transconductance
0.5
mA/V
Heater
Heater Voltage
Heater Voltage
6.3
V
Heater Current
Heater Current
0.3
A
Notes
Cyrillic designation: 6С2С. This is a triode-hexode frequency converter, distinct from the triode 6S2S (6С2С in a different transliteration scheme).
The triode section serves as the local oscillator, while the hexode section acts as the mixer.
Designed for superheterodyne receiver front-end circuits.
Soviet-specific design with no exact Western equivalent. The Western 6K8 is functionally similar but not electrically identical.
Pin Layout — Octal
1
2
3
4
5
6
7
8
1
Hexode Grid 1 (signal)
2
Heater
3
Hexode Anode
4
References
https://www.radiomuseum.org/tubes/tube_6s2s.html
Hexode Screen Grid
5
Triode Grid
6
Triode Anode
7
Heater
8
Cathode (common)