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

ECH3

Triode-hexode frequency changer for radio receiver oscillator and mixing service. The triode provides local oscillation while the hexode performs frequency conversion to the receiver intermediate frequency.

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

Description

Triode-heptode/hexode frequency-converter tube for oscillator, mixer, and amplifier service. The supplied manufacturer datasheet provides heater data, electrical characteristics, ratings, capacitances, operating conditions, and application information where published.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
-
Base pins
-
Nominal heater voltage
6.3 V
Nominal heater current
200 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
Yes

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
0.0028 S
Amplification factor
24
Max plate voltage
150 V
Max plate dissipation
1.5 W

Published ratings and characteristics extracted from supplied datasheet. Philips ECH3 common-cathode oscillator triode. Maximum continuous anode voltage 150 V and plate dissipation 1.5 W; 550 V is only the cold-anode withstand limit, not continuous operation. Typical oscillator-triode characteristics include transconductance 2.8 mA/V and amplification factor 24. Published interelectrode capacitances.

Section 2

Hexode

X-ray radiationInterelectrode capacitances
Plate resistance
1300000 Ω
Max plate voltage
300 V
Max screen voltage
125 V
Max plate dissipation
1.2 W
Max screen dissipation
0.6 W
Max cathode current
15 mA

Published ratings and characteristics extracted from supplied datasheet. Philips ECH3 variable-mu hexode converter on a common cathode with oscillator triode. Maximum continuous anode voltage 300 V, plate dissipation 1.2 W, screen dissipation 0.6 W and cathode current 15 mA. 550 V is a cold-anode/screen withstand limit, not continuous operation. Screen limit 125 V is conditional at specified anode current, with up to 200 V permissible at very low current. Plate resistance 1.3 MΩ is an operating-point characteristic, not an absolute maximum; capacitances documented.

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

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • liche Kathode, deren Heizleistung

    1.26 W

    Published datasheet value

  • ist bei

    6.3 V

    Published datasheet value

  • ist bei 6,3 V Spannung

    200 mA

    Published datasheet value

  • bei

    200 mA

    Published datasheet value

  • Mischverstirkung. Bei

    250 V

    Published datasheet value

  • Mischverstirkung. Bei 250 V Anodenspannung und

    100 V

    Published datasheet value

  • weniger als

    1 kHz

    Published datasheet value

  • unterregelung weniger als

    2 kHz

    Published datasheet value

  • torfrequenz von etwa

    0.5 V

    Published datasheet value

  • males Arbeiten betrigt nur

    8 V

    Published datasheet value

  • Mischsteilheit noch sehr hoch (bei

    5 V

    Published datasheet value

  • viel griBeren Oszillatorspannungen als

    8 V

    Published datasheet value

  • schwankt. Die Oszillatorspannung von

    8 V

    Published datasheet value

  • schwankt. Die Oszillatorspannung von 8 V (

    200 µA

    Published datasheet value

  • durch den Gitterableitwiderstand von

    50 Ω

    Published datasheet value

  • Die ECH

    3 w

    Published datasheet value

  • LD F

    1514 v

    Published datasheet value

  • lU Vb

    250 V

    Published datasheet value

  • BEEEN j RIS Va-t

    0 v

    Published datasheet value

  • nung von 200 bis

    250 V

    Published datasheet value

  • nung von 200 bis 250 V. spannung von

    100 V

    Published datasheet value

  • Heizspannung . . . . . . « « « « « o« v v o v oo V

    63 V

    Published datasheet value

  • Vo

    200 V

    Published datasheet value

  • von 200 bis

    250 V

    Published datasheet value

  • von 200 bis 250 V. von

    100 V

    Published datasheet value

  • 2

    200 V

    Published datasheet value

  • 2 = 200 V

    250 V

    Published datasheet value

  • B201

    100 V

    Published datasheet value

  • B201 = 100 V

    100 V

    Published datasheet value

  • 21 = —

    2 V

    Published datasheet value

  • 21 = —2V}YH —

    17 V

    Published datasheet value

  • 21 = —2V}YH —17V2) —

    23 V

    Published datasheet value

  • I,

    3 mA

    Published datasheet value

  • I, = 3 mA — —

    3 mA

    Published datasheet value

  • Iy + Iy

    3 mA

    Published datasheet value

  • Iy + Iy 3 mA — —

    3 mA

    Published datasheet value

  • —

    650 µA

    Published datasheet value

  • — 650uA/V 6,5 pA/V L5 AV

    650 µA

    Published datasheet value

  • 05 0

    20044 V

    Published datasheet value

  • Ohm, ¥Va

    250 V

    Published datasheet value

  • Ohm, ¥Va = 250 V und einer festen Schirmgitter

    50 Ω

    Published datasheet value

  • Ohm, ¥Va = 250 V und einer festen Schirmgitter- = 50.000 Ohm, Va

    250 V

    Published datasheet value

  • spannung von

    100 V

    Published datasheet value

  • +

    33 Ω

    Published datasheet value

  • Verhiltnisse) (Eigenverbrauch des Spannungsteilers

    3 mA

    Published datasheet value

  • Anodenspannung bzw. Speisespannung Vp = V,

    250 V

    Published datasheet value

  • Neg. Vorspannung an Gitter 1. . . . Vy; = -—

    2 V

    Published datasheet value

  • Neg. Vorspannung an Gitter 1. . . . Vy; = -—2V1)

    235 V

    Published datasheet value

  • Neg. Vorspannung an Gitter 1. . . . Vy; = -—2V1) 235V

    -31 V

    Published datasheet value

  • Schirmgitterspannung . . . . . . . . Vg,

    100 V

    Published datasheet value

  • Schirmgitterspannung . . . . . . . . Vg, = 100V —

    145 V

    Published datasheet value

  • Anodenstrom . . . . . . . . . ... I,

    3 mA

    Published datasheet value

  • Schirmgitterstrom . . . . . . . . Ip-+I

    3 mA

    Published datasheet value

  • Rg,

    50 Ω

    Published datasheet value

  • Rg, = 50.000 Ohm, Va

    250 V

    Published datasheet value

  • Rg, = 50.000 Ohm, Va = 250 V und Schirm- Va

    250 V

    Published datasheet value

  • 47.000 4

    33 Ω

    Published datasheet value

  • (Eigenverbrauch des Spannungsteilers

    2.1 mA

    Published datasheet value

  • Anodenspannung bzw. Speisespannung Vi = Vo

    250 V

    Published datasheet value

  • Neg. Vorspannung an Gitter 1 . Ve = —

    2 V

    Published datasheet value

  • Neg. Vorspannung an Gitter 1 . Ve = —2V1)

    19 V

    Published datasheet value

  • Neg. Vorspannung an Gitter 1 . Ve = —2V1) 19 V%) —

    23 V

    Published datasheet value

  • Schirmgitterspannung . Vigos

    0 V

    Published datasheet value

  • Schirmgitterspannung . Vigos = 0V —

    100 V

    Published datasheet value

  • Anodenstrom . I,

    1.5 mA

    Published datasheet value

  • Schirmgitterstrom Iy + I,

    1.6 mA

    Published datasheet value

  • Mischsteilheit . S,

    450 µA

    Published datasheet value

  • Mischsteilheit . S, = 450 uA/V

    4.5 µA

    Published datasheet value

  • Rl BEETA _Va

    200 V

    Published datasheet value

  • e

    2 w

    Published datasheet value

  • Rg, = 50.000 Obm, Va

    200 V

    Published datasheet value

  • Rg, = 50.000 Obm, Va = 200 V und Schirm- 50.000 Obm, Va

    100 V

    Published datasheet value

  • 19.000 +

    54 Ω

    Published datasheet value

  • 19.000 + 54.000 Ohm (fiir umschaltbare G/W

    54 Ω

    Published datasheet value

  • (Eigenverbrauch des Spannungsteilers

    1.5 mA

    Published datasheet value

  • Neg. Vorspannung an Gitter 1 . . . . Vg, = —

    2 V

    Published datasheet value

  • Neg. Vorspannung an Gitter 1 . . . . Vg, = —2VI) —

    28.5 V

    Published datasheet value

  • Neg. Vorspannung an Gitter 1 . . . . Vg, = —2VI) —28.5V2) —

    40 V

    Published datasheet value

  • Schirmgitterspannung . . . . . . . . Vg

    125 V

    Published datasheet value

  • Schirmgitterspannung . . . . . . . . Vg = 125V —

    200 V

    Published datasheet value

  • Anodenstrom . . . . . . . . . . .. I4

    4.5 mA

    Published datasheet value

  • Schirmgitterstrom . . . . . . . . Ip + I

    43 mA

    Published datasheet value

  • Mischsteitheit . . . . . . . . . . .. S = 800pA/V

    8 µA

    Published datasheet value

  • 7 Tve - - vanzs

    0 v

    Published datasheet value

  • Bei Va

    250 V

    Published datasheet value

  • Bei Va = 250 V und einer festen Schirmgitter- Bei ¥a

    250 V

    Published datasheet value

  • Obere Kurven: Fiir

    1 %

    Published datasheet value

  • spanpung und fir

    1 %

    Published datasheet value

  • (mb = 19,) zuldssige Wechselspannung des Stor- spannung und fir

    1 %

    Published datasheet value

  • signals am Gitter als Funktion der Mischsteilheit. (mb

    1 %

    Published datasheet value

  • Published value

    200 V

    Published datasheet value

  • 200 V

    1.85 mA

    Published datasheet value

  • 200 V 1,85 mA und bei V3

    100 V

    Published datasheet value

  • Published value

    1 mA

    Published datasheet value

  • Ve = Vo

    100 V

    Published datasheet value

  • Ve = Vo = 100 V

    200 V

    Published datasheet value

  • —

    1.25 V

    Published datasheet value

  • —1,25V!) —

    13.5 V

    Published datasheet value

  • —1,25V!) —13,5V?) —

    16.5 V

    Published datasheet value

  • 22

    55 V

    Published datasheet value