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Nuvistor Tubes (all numbers) ·Triode

8203

Power transmitting triode for RF amplification, oscillation, modulation, or related high-power electronic service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
NUVISTOR5
Base pins
5
Nominal heater
6.3 V / 160 mA

Description

Ceramic-metal Nuvistor power triode for Class C RF amplification, oscillation, frequency multiplication, and pulse service.

Socket description

Nuvistor 5-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
NUVISTOR5
Base pins
5
Nominal heater voltage
6.3 V
Nominal heater current
160 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

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
5000 Ω
Transconductance
0.013 S
Amplification factor
35
Max plate voltage
300 V
Max plate dissipation
1.8 W
Max cathode current
30 mA

Electrical section extracted from supplied RCA data sheet.

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

1964 RMA EIA

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Heater Voltage

    6.3 V

  • Heater Current

    160 mA

  • Grid To Plate Capacitance

    2 pF

  • Input Capacitance

    4.2 pF

  • Output Capacitance

    1.6 pF

  • CathodeToPlateCapacitance

    0.26 pF

  • Plate Resistance

    2700 ohm

  • Transconductance

    13000 uS

  • Amplification Factor

    35

Other

  • Plate Voltage Maximum

    300 V

    ICAS

  • Cathode Current Maximum

    30 mA

    ICAS

  • Plate Dissipation Maximum

    1.8 W

    ICAS

  • Plate Voltage

    75 V

    ClassA

  • Plate Voltage

    150 V

    ClassC;RFPowerAmplifier

  • Cathode Current

    21 mA

    ClassC;RFPowerAmplifier

  • Useful Power Output

    1.55 W

    ClassC;RFPowerAmplifier

  • MaximumOperatingFrequency

    250 MHz

    FrequencyMultiplier

Data set 02

1971 RCA HB3 Binder 6 of 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Heater/filament voltage nominal

    6.3 V

    WholeTube

  • Heater/filament current nominal

    160 mA

    WholeTube

  • Voltage (AC or DC)

    6.3 V

    Published source row

  • Voltage (AC or DC) (value 2)

    0.6 V

    Published source row

  • Current at

    6.3 V

    Published source row

  • Current at (value 2)

    0.16 V

    Published source row

  • Heater negative with respect to cathode

    100 V

    Published source row

  • Heater positive with respect to cathode

    100 V

    Published source row

  • Heater to cathode L

    5 pF

    Published source row

  • DC Plate Supply Voltage

    75 V

    Published source row

  • DC Plate Supply Voltage (value 2)

    150 V

    Published source row

  • Grid Supply Voltage

    0 V

    Published source row

  • Grid Supply Voltage (value 2)

    0 V

    Published source row

  • Plate Resistance (Approx.)

    2700 ohm

    Published source row

  • Plate Resistance (Approx.) (value 2)

    5000 ohm

    Published source row

  • Transconductance

    13000

    Published source row

  • Transconductance (value 2)

    6000

    Published source row

  • Plate Current

    11.5 mA

    Published source row

  • Plate Current (value 2)

    7 mA

    Published source row

  • Grid Voltage (Approx.) for plate µa =

    10 V

    Published source row

  • Grid Voltage (Approx.) for plate µa = (value 2)

    -6.5 V

    Published source row

  • Grid Voltage (Approx.) for plate µa = (value 3)

    -15 V

    Published source row

  • Published electrical value

    9

    Published source row

  • Published electrical value (value 2)

    150

    Published source row

  • Heater Current

    1 A

    Published source row

  • Heater Current (value 2)

    150 mA

    Published source row

  • Heater Current (value 3)

    170 mA

    Published source row

  • Heater to cathode

    2 pF

    Published source row

  • Heater to cathode (value 2)

    1.2 pF

    Published source row

Other

  • DC Plate Supply Voltage

    400 V

    Published source row

  • DC Plate Supply Voltage (value 2)

    400 V

    Published source row

  • DC Plate Voltage

    250 V

    Published source row

  • DC Plate Voltage (value 2)

    300 V

    Published source row

  • Peak-Positive Grid Voltage

    5 V

    Published source row

  • Peak-Positive Grid Voltage (value 2)

    5 V

    Published source row

  • DC Cathode Current

    25 mA

    Published source row

  • DC Cathode Current (value 2)

    30 mA

    Published source row

  • DC Grid Current

    5 mA

    Published source row

  • DC Grid Current (value 2)

    6 mA

    Published source row

  • Plate Dissipation

    1 W

    Published source row

  • Plate Dissipation (value 2)

    5 W

    Published source row

  • Plate Dissipation (value 3)

    1.8 W

    Published source row

  • DC Plate-to-Grid Voltage

    155 V

    Published source row

  • DC Cathode-to-Grid Voltage

    14 V

    Published source row

  • DC Cathode Current

    21 mA

    Published source row

  • DC Grid Current

    5 mA

    Published source row

  • Driver Power Output (Approx )

    0.4 W

    Published source row

  • Useful Power Output (Approx )

    1 W

    Published source row

  • Useful Power Output (Approx ) (value 2)

    55 W

    Published source row

  • DC Plate Voltage

    100 V

    Published source row

  • DC Grid Voltage

    -3.4 V

    Published source row

  • DC Cathode Current

    18 mA

    Published source row

  • DC Grid Current

    2.5 mA

    Published source row

  • Useful Power Output (Approx )

    0.8 W

    Published source row

  • Grid-Circuit Resistance (CCS or ICAS conditions)

    9

    Published source row

  • DC Plate Supply Voltage

    400 V

    Published source row

  • DC Plate Supply Voltage (value 2)

    400 V

    Published source row

  • Peak-Positive Grid Voltage

    5 V

    Published source row

  • Peak-Positive Grid Voltage (value 2)

    5 V

    Published source row

  • DC Cathode Current

    20 mA

    Published source row

  • DC Cathode Current (value 2)

    24 mA

    Published source row

  • DC Grid Current

    3 mA

    Published source row

  • DC Grid Current (value 2)

    4 mA

    Published source row

  • Plate Dissipation

    1.3 W

    Published source row

  • Plate Dissipation (value 2)

    1.5 W

    Published source row

  • DC Plate Voltage

    125 V

    Published source row

  • DC Grid Voltage

    -70 V

    Published source row

  • DC Cathode Current

    22 mA

    Published source row

  • DC Grid Current

    4 mA

    Published source row

  • Driver Power Output (Approx )

    0 W

    Published source row

  • Driver Power Output (Approx ) (value 2)

    25 W

    Published source row

  • Useful Power Output (Approx )

    0 W

    Published source row

  • Useful Power Output (Approx ) (value 2)

    85 W

    Published source row

  • Grid-Circuit Resistance (CCS or ICAS conditions)

    9

    Published source row

  • Peak Positive-Pulse Plate Voltage

    500 V

    Published source row

  • DC Plate Voltage

    250 V

    Published source row

  • Peak Positive Grid Voltage

    5 V

    Published source row

  • DC Grid Current

    5 mA

    Published source row

  • DC Cathode Current

    18 mA

    Published source row

  • Plate Dissipation ~

    1 W

    Published source row

  • Grid-Circuit Resistance

    9

    Published source row

  • frequency env el ope does not exceed

    115

    Published source row

  • and plate voltage for the

    8203

    Published source row