Data set 01
1960 Mazda
Published operating points and test conditions from this source.
SECTION 1
Pentode
Other
Plate Voltage
250 V
Screen Voltage
100 V
Grid Voltage
-1.8 V
Plate Current
5 mA
Screen Current
1 mA
Voltage Pentode - Sharp Cutoff (single) ·Pentode
6F11
Mazda 6F11 screened sharp-cutoff RF pentode for receiving and signal amplification, with high anode impedance, 6.3 V 0.2 A heater and eight-contact B8A-style base.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- 8
- Nominal heater
- 6.3 V / 200 mA
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- -
- Base pins
- 8
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 200 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
Terminal pinout
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
Section ratings
1 physical section, each with unique specifications.
Section 1
Pentode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 2800000 Ω
- Transconductance
- 0.0022 S
- Max plate voltage
- 250 V
- Max screen voltage
- 150 V
- Max cathode current
- 10 mA
Mazda 6F11 screened sharp-cutoff RF pentode, eight-contact B8A-style base, indirectly heated 6.3 V 0.2 A. Manufacturer maximum plate 250 V, screen 150 V, cathode current 10 mA; typical at plate 250 V/screen 100 V/grid about -1.8 V: gm 2.2 mA/V (0.0022 S), plate resistance 2.8 MΩ, inner grid1-to-screen amplification factor 26. Published plate-to-earth output capacitance ~6.7 pF, grid-to-earth input 5.3 pF and grid-to-plate ~0.0039 pF (fixture-dependent variations); cap flag true. Heater-to-cathode max DC 150 V. Pins 3 and 4 (screening/suppressor) joined and grounded in application per datasheet.
Source-dependent data
Operating conditions by source
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.