6AF11

Name: 6AF11
Brand: RCA

Compound (multi-section) — Compactron — RCA

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

↗ TDSL ↗ Radiomuseum

Known Equivalents & Substitutes

6BD11

Similar Tubes (Not Drop-In Compatible)

6AF9

Similar Compactron triode-pentode compound but with different section configuration and ratings

Electrical Specifications

Section 1 — Triode No.1 (High-Mu)

Absolute Maximum

Anode Voltage (max)Plate Voltage (max)330V

Anode Dissipation (max)Plate Dissipation (max)1.1W

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

Max Grid ResistorMax Grid Resistor (cathode bias)1MΩ

Typical Operating

Notes

Triode Unit No.1 is the high-mu section (mu=68), Triode Unit No.2 is the medium-mu section (mu=41).
The pentode section shares a common cathode with the pentode grid No.3 (suppressor) internally connected to cathode.
Pin 9 is the pentode cathode and also the pentode grid No.3 and internal shield connection.
Maximum grid-circuit resistance (fixed bias): pentode 0.25 MO, triode 0.5 MO. Cathode bias: pentode 1 MO, triode 1 MO.
Interelectrode capacitance from pentode plate to triode No.2 plate is 0.045 pF max, triode No.1 to triode No.2 plate is 0.06 pF max.

Pin Layout — Compactron

1Heater

2

References

https://frank.pocnet.net/sheets/049/6/6AF11.pdf