6S2S — Small Signal Triode, Octal | Tubeofile | Tubeofile

6S2S

Small Signal Triode — Octal

Data: HighHigh quality — base, heater, all universal parameters present, and ≥50% of desirable parameters filled in. Safe to use for design decisions.

↗ Radiomuseum

Known Equivalents & Substitutes

6J56J5GT6J5GCV1067VT-94L63

Similar Tubes (Not Drop-In Compatible)

12J5GT

12.6V heater version of 6J5GT — same electricals but incompatible heater

6S5S

Soviet equivalent of 6C5GT — similar single triode but different mu/gm characteristics

Electrical Specifications

Absolute Maximum

Anode Voltage (max)Anode Voltage (max)300V

Anode Dissipation (max)Anode Dissipation (max)2.5W

Cathode Current (max)Cathode Current (max)20mA

Heater-to-Cathode Voltage (max)Heater-to-Cathode Voltage (max)90V

Typical Operating

Notes

Cyrillic designation: 6С2С. The Latin transliteration 6S2S uses 'S' for Cyrillic 'С'.
Russian_equivalents.json confirms: 6S2S ≈ 6J5GT. Foreign_substitutes.json also lists 6S2S with western analogue 6J5GT.
Electrically identical to the 6J5GT: mu=20, gm=2600 µmhos, ra=7700Ω at Va=250V, Vg=-8V.
Same Octal pinout as 6J5GT — pin-compatible drop-in replacement.

Pin Layout — Octal