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Voltage - Dual Triode (similar high frequency) ·Triode-Triode

5ES8

5ES8 (YCC189) semi-remote-cutoff dual VHF triode for low-noise cascode amplification in television tuners, with 5.6 V 450 mA heater and 9AJ miniature base.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
9AJ
Socket code
-
Base pins
9
Nominal heater
5.6 V / 450 mA

Description

5ES8 is a DualTriode device. High-performance frame-grid remote-cutoff twin triode for low-noise cascode television tuner service.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
9AJ
Socket code
-
Base pins
9
Nominal heater voltage
5.6 V
Nominal heater current
450 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

9AJ - Terminal pinout

Electrical assignments shared by every tube using this base designation.

TerminalSectionConnectionEvidence
PIN12PBP — Plate (Anode)

Numbered source electrode preserved; manufacturer verification pending

Unverified

EIA Base Connections, printed page 131, 9AJ

PIN22G1BG1 — Control Grid

Source label preserved; pending confirmation

Unverified

EIA Base Connections, printed page 131, 9AJ

PIN32KBK — Cathode

Numbered source electrode preserved; manufacturer verification pending

Unverified

EIA Base Connections, printed page 131, 9AJ

PIN4H—H — Heater

Numbered source electrode preserved; manufacturer verification pending

Unverified

EIA Base Connections, printed page 131, 9AJ

PIN5H—H — Heater

Numbered source electrode preserved; manufacturer verification pending

Unverified

EIA Base Connections, printed page 131, 9AJ

PIN61PAP — Plate (Anode)

Numbered source electrode preserved; manufacturer verification pending

Unverified

EIA Base Connections, printed page 131, 9AJ

PIN71G1AG1 — Control Grid

Source label preserved; pending confirmation

Unverified

EIA Base Connections, printed page 131, 9AJ

PIN81KAK — Cathode

Numbered source electrode preserved; manufacturer verification pending

Unverified

EIA Base Connections, printed page 131, 9AJ

PIN9ISAIS — Internal Screen

Numbered source electrode preserved; manufacturer verification pending

Unverified

EIA Base Connections, printed page 131, 9AJ

Section ratings

2 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
2600 Ω
Transconductance
0.0125 S
Amplification factor
34
Max plate voltage
130 V
Max plate dissipation
1.8 W
Max cathode current
22 mA

5ES8/YCC189 variable-mu cascode physical triode section 1, grounded-cathode input (pins 6,7,8). Design-center max operating plate 130 V, plate dissipation 1.8 W, cathode current 22 mA, grid negative limit -50 V, grid circuit resistance max 1 MΩ. Max PLATE SUPPLY at zero plate current 550 V is separate rating and not a normal plate operating maximum. Typical Va 90 V Vg -1.2 V Ia 15 mA, gm 0.0125 A/V, mu 34, rp 2600 Ω. At Vg -5 V gm 625 µmhos (remote cutoff). Cascode supply 180 V, Ia 15 mA, noise figure 6.5 dB. Direct capacitances Cgp 1.85 pF, Cpk 0.18 pF unshielded/0.17 shielded, Chk 3.0 pF. Heater-cathode limits depend on section and DC/peak/RMS, see parent notes. 9AJ base.

Section 2

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
2600 Ω
Transconductance
0.0125 S
Amplification factor
34
Max plate voltage
130 V
Max plate dissipation
1.8 W
Max cathode current
22 mA

5ES8/YCC189 variable-mu cascode physical triode section 2, grounded-grid output (pins 1,2,3). Design-center max operating plate 130 V, plate dissipation 1.8 W, cathode current 22 mA, grid negative limit -50 V, grid circuit resistance max 1 MΩ. Max PLATE SUPPLY at zero plate current 550 V is separate rating and not a normal plate operating maximum. Typical Va 90 V Vg -1.2 V Ia 15 mA, gm 0.0125 A/V, mu 34, rp 2600 Ω. At Vg -5 V gm 625 µmhos (remote cutoff). Cascode supply 180 V, Ia 15 mA, noise figure 6.5 dB. Direct capacitances Cgp 1.85 pF, Cpk 0.18 pF unshielded/0.17 shielded, Chk 3.0 pF. Heater-cathode limits depend on section and DC/peak/RMS, see parent notes. 9AJ base.

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

1963 Amperex Condensed

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Transconductance

    12500 uS

    EachUnit