6CL6

Name: 6CL6
Brand: RCA

Power Pentode — Noval — RCA

Data: MediumMedium quality — at least 60% of universal parameters and pins are present, but some key data is missing. Verify specific values against datasheets before critical use.

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Known Equivalents & Substitutes

667761976CK6 EL803

Similar Tubes (Not Drop-In Compatible)

6AG7

Similar power pentode but Octal base — not pin-compatible

6CH6

Similar power pentode on Noval base but higher gm and different pinout — not a drop-in

Electrical Specifications

Absolute Maximum

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

Screen Voltage (max)Screen Voltage (max)150V

Anode Dissipation (max)Anode Dissipation (max)7.5W

Heater-to-Cathode Voltage (max)Heater-to-Cathode Voltage (max)100V

Typical Operating

Notes

GE Essential Characteristics: Pa_max 7.5 W, Va_max 300 V, Vs_max 150 V, Va(typ) 250 V, Vs(typ) 150 V, Vg=-3V, Ia=30mA, gm=7000, Rp=150000, Pout=2.8W.
6677 is the same tube under its RETMA registered number; 6197 is another alternate designation.
Sams substitution guide lists 2014 and 12G-K17 as substitutes.
Brans Vademecum lists 6677(/6CL6) as equivalent.
Used in television video output stages and as a driver in audio amplifiers.

Pin Layout — Noval

1Internal Connection

2Anode

3No Connection

Socket-Compatible Tubes ⚠ Not electrically compatible

6BR7 AL860

References