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Power - Beam (NOT sweep) ·BeamPower-Diode

25JQ6

Beam-power tube with an integral diode, a heater variant of its explicitly referenced parent family and intended for television deflection/output service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
-
Socket code
B9E
Base pins
-
Nominal heater
25.2 V / 300 mA

Description

The 25JQ6 is a beam power tube. The supplied datasheet was used for heater, ratings, characteristics, and operating data; where the sheet explicitly states equivalence to a 6-volt parent, that parent electrical data is inherited while retaining this tube's heater characteristics.

Socket description

Novar 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B9E
Base pins
-
Nominal heater voltage
25.2 V
Nominal heater current
300 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

Beam Power

X-ray radiationInterelectrode capacitances
Plate resistance
10500 Ω
Transconductance
0.0042 S
Max plate voltage
425 V
Max plate dissipation
10 W
Max screen dissipation
2 W

Inherited from explicitly referenced parent 6JQ6; supplied sheet changes heater characteristics.

Section 2

Diode

X-ray radiationInterelectrode capacitances
Max cathode current
5 mA
Rectifier peak inverse voltage
425 V
Rectifier forward voltage drop
5 V

Inherited from explicitly referenced parent 6JQ6; supplied sheet changes heater characteristics.

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

1971 RCA HB3 Binder 5 of 7

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

  • PLATE DISSIPATION =

    10 WATTS

    Published table value Inherited from explicitly referenced 6JQ6.

  • Heater Voltage (AC or DC) Eh

    6.3 V

    Published table value Inherited from explicitly referenced 6JQ6.

  • Heater Current Ih

    1.2 A

    Published table value Inherited from explicitly referenced 6JQ6.

  • Grid No

    1 pF

    Published table value column 1 Inherited from explicitly referenced 6JQ6.

  • Grid No

    0.32 pF

    Published table value column 2 Inherited from explicitly referenced 6JQ6.

  • Input: G

    13 K

    Published table value Inherited from explicitly referenced 6JQ6.

  • Output: Pto(K, G

    6 K

    Published table value Inherited from explicitly referenced 6JQ6.

  • DC Plate Current Ib

    150 mA

    Published table value column 1 Inherited from explicitly referenced 6JQ6.

  • DC Plate Current Ib

    35 mA

    Published table value column 2 Inherited from explicitly referenced 6JQ6.

  • DC Grid-No

    2 mA

    Published table value column 1 Inherited from explicitly referenced 6JQ6.

  • DC Grid-No

    20 mA

    Published table value column 2 Inherited from explicitly referenced 6JQ6.

  • DC Grid-No

    2.5 mA

    Published table value column 3 Inherited from explicitly referenced 6JQ6.

  • Cutoff DC Grid-No. l Voltage. Ecl(co)

    -37 V

    Published table value Inherited from explicitly referenced 6JQ6.

  • DC Plate Voltage Eb

    40 V

    Published table value column 1 Inherited from explicitly referenced 6JQ6.

  • DC Plate Voltage Eb

    140 V

    Published table value column 2 Inherited from explicitly referenced 6JQ6.

  • DC Grid-No

    3 V

    Published table value column 1 Inherited from explicitly referenced 6JQ6.

  • DC Grid-No

    0 V

    Published table value column 2 Inherited from explicitly referenced 6JQ6.

  • DC Grid-No

    0 V

    Published table value column 3 Inherited from explicitly referenced 6JQ6.

  • ~", DC Grid-No

    2 V

    Published table value column 1 Inherited from explicitly referenced 6JQ6.

  • ~", DC Grid-No

    120 V

    Published table value column 2 Inherited from explicitly referenced 6JQ6.

  • ~", DC Grid-No

    140 V

    Published table value column 3 Inherited from explicitly referenced 6JQ6.

  • DC Grid-No. l Voltage Ecl

    0 V

    Published table value column 1 Inherited from explicitly referenced 6JQ6.

  • DC Grid-No. l Voltage Ecl

    -18 V

    Published table value column 2 Inherited from explicitly referenced 6JQ6.

  • DC Plate Voltage Eb

    425 V

    Published table value Inherited from explicitly referenced 6JQ6.

  • DC Grid-No

    2 V

    Published table value column 1 Inherited from explicitly referenced 6JQ6.

  • DC Grid-No

    330 V

    Published table value column 2 Inherited from explicitly referenced 6JQ6.

  • (Control-Grid) Voltage eclm

    150 V

    Published table value Inherited from explicitly referenced 6JQ6.

  • Heater Voltage (AC or DC) ~h

    5.7 V

    Published table value column 1 Inherited from explicitly referenced 6JQ6.

  • Heater Voltage (AC or DC) ~h

    6.9 V

    Published table value column 2 Inherited from explicitly referenced 6JQ6.

  • (& Grid-No

    3 mA

    Published table value Inherited from explicitly referenced 6JQ6.

  • Grid-No

    2 W

    Published table value column 1 Inherited from explicitly referenced 6JQ6.

  • Grid-No

    2 W

    Published table value column 2 Inherited from explicitly referenced 6JQ6.

  • Plate Dissipation b

    10 W

    Published table value Inherited from explicitly referenced 6JQ6.

  • a With grid No

    3 a

    Published table value Inherited from explicitly referenced 6JQ6.

  • W GRID-Na

    140 W

    Published table value Inherited from explicitly referenced 6JQ6.

Characteristics

  • Transconductance gm

    4200 µS

    Published table value Inherited from explicitly referenced 6JQ6.

SECTION 2

Diode

Other

  • DC Grid-No

    3 V

    Published table value column 1 Inherited from explicitly referenced 6JQ6.

  • DC Grid-No

    10 V

    Published table value column 2 Inherited from explicitly referenced 6JQ6.

  • Maximum Reverse Voltage

    425 V

  • Maximum Cathode Current

    5 mA