6F13

Mazda 6F13 high-slope screened RF pentode for wideband television and RF amplification, with 6.3 V 0.35 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 / 350 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: 350 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

Transconductance: 0.009 S
Max plate voltage: 250 V
Max screen voltage: 250 V
Max plate dissipation: 3.5 W
Max screen dissipation: 1 W

Mazda 6F13 high-slope screened RF pentode with eight-contact B8A-style base, indirectly heated 6.3 V 0.35 A. Manufacturer maxima plate and screen 250 V each; plate dissipation 3.5 W, screen dissipation 1 W under specified grid-cathode resistance conditions. Typical Va=Vg2=200 V and grid bias ~-1.8 V: anode 10 mA, screen about 2.6 mA, gm ~9 mA/V (0.009 S). Manufacturer electrode capacitances plate-to-earth ~4.4 pF, control-grid-to-earth 9.5 pF and control-grid-to-plate ~0.007 pF without holder; total with holder varies. Cap flag true. Designed for broadband RF and television/video amplification.

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.

Data set 01

1960 Mazda

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

Plate Voltage
200 V
Screen Voltage
200 V
Grid Voltage
-1.8 V
Plate Current
10 mA
Screen Current
2.6 mA