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Power - Pentode (NOT beam) ·Pentode

2E22

Power pentode designed primarily for Class-C radio-frequency transmitting, amplifier, oscillator, or modulated RF service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
UY5
Base pins
5
Nominal heater
6.3 V / 1.5 A

Description

Directly heated power pentode for Class-C RF amplifier and oscillator service.

Socket description

Medium 5-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
UY5
Base pins
5
Nominal heater voltage
6.3 V
Nominal heater current
1.5 A
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
Max plate voltage
750 V
Max screen voltage
250 V
Max plate dissipation
30 W
Max screen dissipation
10 W
Max cathode current
110 mA

Directly heated power pentode for Class-C RF amplifier and oscillator service.

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

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Pentode

Capacitance

  • Grid To Plate Capacitance

    0.2 pF

    WithShield

  • Input Capacitance

    15 pF

  • Output Capacitance

    8 pF

Other

  • Power Output

    30 W

    ClassC

Data set 02

1966 Tung Sol Electronic Tubes 1 of 4

Published operating points and test conditions from this source.

SECTION 1

Pentode

Capacitance

  • PLATE MITTENT OpEP ATION TO AS nIGX AS

    5.5 V

    Capacitances | PLATE MITTENT OpEP ATION TO AS nIGX AS 1.0 OR AS LOW AS 5.5 VOLTS IS PER MISSI BI E.

Characteristic

  • SCREEN VOLTAGE

    250 V

    ClassC | SCREEN VOLTAGE 250 250 250 250 voLTs

  • SCREEN CURRENT

    16 mA

    ClassC | SCREEN CURRENT 16 16 16 16 MA.

  • CONTROL GRID RESISTOR C

    0 ohm

    ClassC | CONTROL GRID RESISTOR C 10 000 10 000 10 000 10 000 OHMS

  • PEAK R-F GRID VOLTAGE ~APPROX.~

    100 V

    ClassC | PEAK R-F GRID VOLTAGE ~APPROX.~ 100 100 100 100 VOLTS

  • PLATE VOLTAGE

    750 V

    ClassC | PLATE VOLTAGE 500 750 VOLTS

  • SCREEN VOLTAGE

    250 V

    ClassC | SCREEN VOLTAGE 250 250 VOLTS

  • SCREEN RESISTOR

    0 ohm

    ClassC | SCREEN RESISTOR 8 500 17 000 OHMS

  • SUPPRESSOR VOLTAGE

    -90 V

    ClassC | SUPPRESSOR VOLTAGE -65 -90 VOLTS

  • PEAK R-F GRID VOLTAGE

    100 V

    ClassC | PEAK R-F GRID VOLTAGE 100 100 VOLTS

  • PLA?E CURRENT

    55 mA

    ClassC | PLA?E CURRENT 50 55 MA.

  • SCREEN CURRENT ~APPROX.~

    29 mA

    ClassC | SCREEN CURRENT ~APPROX.~ 29 29 MA.

  • CONTROL GRID CURRENT ~APPRO%.~

    6.5 mA

    ClassC | CONTROL GRID CURRENT ~APPRO%.~ 6.5 6.5 MA.

  • CONTROL GRID RE SISTOR C

    0 ohm

    ClassC | CONTROL GRID RE SISTOR C 10 000 10 000 OHMS

  • GRID DRIVING POWER ~AP PR OX.)

    0.6 W

    ClassC | GRID DRIVING POWER ~AP PR OX.) 0.6 0.6 WATT

  • POWER OUTPUT ~APPR OX.~

    16.5 W

    ClassC | POWER OUTPUT ~APPR OX.~ 10.5 16.5 WATTS

  • VOLTAGE E%CEE

    500 V

    ClassC | VOLTAGE E%CEE05 500 VOLTS.