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Voltage - Triode (with diode, heptode or hexode) ·Hexode-Triode

ECH11

Triode-hexode frequency changer for superheterodyne receivers. The triode generates the local oscillator signal while the hexode mixes it with incoming RF to produce the intermediate frequency.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
-
Socket code
B9A
Base pins
9
Nominal heater
6.3 V / 200 mA

Description

Triode-hexode for remote-cutoff frequency-changer stages.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B9A
Base pins
9
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

2 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Transconductance
0.003 S
Amplification factor
18
Max plate voltage
150 V
Max plate dissipation
1 W
Max cathode current
10 mA

Published ratings and characteristics promoted from the approved German source.

Section 2

Hexode

X-ray radiationInterelectrode capacitances
Plate resistance
1000000 Ω
Transconductance
0.00065 S
Max plate voltage
300 V
Max screen voltage
125 V
Max plate dissipation
1.8 W
Max screen dissipation
0.6 W
Max cathode current
18 mA

Published ratings and characteristics promoted from the approved German source.

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

1953 RFT Rundfunk Technik

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • HeaterVoltageNominal

    6.3 V

    Nominal

  • HeaterCurrentNominal

    200 mA

    Nominal

  • Maximum Plate Voltage

    150 V

  • Maximum Plate Dissipation

    1.5 W

  • Maximum Cathode Current

    10 mA

Characteristic

  • Amplification Factor

    22

    Typical

SECTION 2

Hexode

Other

  • HeaterVoltageNominal

    6.3 V

    Nominal

  • HeaterCurrentNominal

    200 mA

    Nominal

  • Maximum Plate Voltage

    300 V

  • Maximum Screen Voltage

    100 V

  • Maximum Plate Dissipation

    1.5 W

  • Maximum Screen Dissipation

    0.6 W

  • Maximum Cathode Current

    20 mA

Characteristic

  • Transconductance

    1600 µS

    Typical

  • Plate Resistance

    1000000 ohm

    Typical

Data set 02

1959 Telefunken

Published operating points and test conditions from this source.

SECTION 1

Triode

Application

  • Application

    Oscillator

SECTION 2

Hexode

Application

  • Application

    Remote-cutoff mixer

Data set 03

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Chauffage: indirect par C.A. ou C.C.; Ve = W

    3 V

    Published datasheet value

Capacitance

  • o <

    1.6 pF

    Published datasheet value

  • caH

    9.1 pF

    Published datasheet value

  • g <

    0.001 pF

    Published datasheet value

  • g < 0,001 pF c(gT+g3)-f <

    0.3 pF

    Published datasheet value

  • g <

    0.25 pF

    Published datasheet value

  • 21 = 53

    0 pF

    Published datasheet value

  • Cg1f <

    0.001 pF

    Published datasheet value

  • Cg1f < 0,001 pF C(gT+g3)-a u <

    0.06 pF

    Published datasheet value

  • caT

    3.7 pF

    Published datasheet value

  • caT = 3,7 pF aT-all <

    0.0045 pF

    Published datasheet value

  • <

    0.035 pF

    Published datasheet value

Other

  • y = 100 200

    250 V

    Published datasheet value

  • Ia = 1,2 2,6

    3.4 mA

    Published datasheet value

  • Va = 64 122

    148 V

    Published datasheet value

  • gT+g3 165 330

    330 w

    Published datasheet value

  • Vosc = 4 8,5

    8.5 V

    Published datasheet value

  • Va<Vp = 100 200

    250 v

    Published datasheet value

  • Vose = 4 £,5

    8.5 V

    Published datasheet value

  • Vgr = 16,8 T2 15,8 2

    16 w

    Published datasheet value

  • Vg2.g4 = 40 72 87 146 95

    156 V

    Published datasheet value

  • S¢ = 470 4,7 590 5,9 640

    6.4 µA

    Published datasheet value

  • Vao = max

    550 V

    Published datasheet value

  • Va = max

    300 V

    Published datasheet value

  • Via = max

    1.8 W

    Published datasheet value

  • V(ga+ga)o = max

    550 V

    Published datasheet value

  • g2+ed Ela <

    1 mA

    Published datasheet value

  • g2+ed Ela < 1 mA)} = max

    300 V

    Published datasheet value

  • Vgo+g4 (Ia = 2,3 mh) = max

    125 V

    Published datasheet value

  • Weneps = max

    0.6 W

    Published datasheet value

  • Iy = max

    18 mA

    Published datasheet value

  • Ve1 (Igl = +0,3 u A) max

    -1.3 V

    Published datasheet value

  • ggT+g3 (1gT+g3= +0

    3 µA

    Published datasheet value

  • ggT+g3 (1gT+g3= +0 3 uA) max

    -1.3 V

    Published datasheet value

  • Vik = max

    100 V

    Published datasheet value

  • v max

    550 V

    Published datasheet value

  • a

    0 ma

    Published datasheet value

  • a0 max

    150 V

    Published datasheet value

  • W, max

    1 w

    Published datasheet value

  • e

    -1.3 V

    Published datasheet value