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Power - Tetrode (NOT beam) ·Tetrode-Tetrode

QQE045

Internally neutralized double tetrode designed for oscillator, frequency-tripler, and amplifier service. Two tetrode sections provide high-frequency paired power operation.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
-
Socket code
-
Base pins
-
Nominal heater
6.3 V / 600 mA

Description

Internally neutralized double tetrode for oscillator, frequency-tripler and amplifier service.

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
600 mA
Parallel heater voltage
6.3 V
Parallel heater current
600 mA
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

Tetrode

X-ray radiationInterelectrode capacitances
Transconductance
0.0105 S
Amplification factor
26
Max plate voltage
400 V
Max screen voltage
225 V

Identical repeated sections compressed to one row. Internally neutralized double tetrode for oscillator, frequency-tripler and amplifier service.

Section 2

Tetrode

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

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 Philips Electron Tubes Handbook V4

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Characteristic

  • Cathode: oxide coated Vf

    6.3 V

    | Cathode: oxide coated Vf = 6.3 V t 10 % 12.6 V t 10 %

  • Cathode: oxide coated Vf

    12.6 V

    | Cathode: oxide coated Vf = 6.3 V t 10 % 12.6 V t 10 %

  • Cathode: oxyde If

    600 mA

    | Cathode: oxyde If - 0.6 A

  • Katode : Oxyd

    300 mA

    | Katode : Oxyd 0.3 A

Capacitance

  • Plate capacitance

    35 pF

    Capacitances | Capacitances (each system) Ca = 1 .35 pF

  • Grid-to-plate capacitance

    0.145 pF

    Capacitances | Cag1 = 0.145 pF

Other

  • Typical characteristics

    350 V

    Typical characteristics | Typical characteristics 350 V

  • Kenndaten Vg

    200 V

    Typical characteristics | Kenndaten Vg2 = 200 V

  • Plate current

    25 mA

    Typical characteristics | Ia = 25 mA

  • Transconductance

    10.5 mA/V

    Typical characteristics | S = 10.5 mA/V

  • Va P

    0 V

    Class C telegraphy | Va P0 Va To Va To Va To

  • Temperatures Scellements des broches max

    220 °C

    Class C telegraphy | Temperatures Scellements des broches max.220°C

  • Bulb. ampoule. Kolben max

    220 °C

    Class C telegraphy | Bulb. ampoule. Kolben max.220°C

  • Published electrical value

    960 MHz

    Class C telegraphy | 960 Mc/s

  • Published electrical value

    960 MHz

    Class C telegraphy | 960 MHz

  • bei

    960 MHz

    Class C telegraphy | bei 960 MHz

  • f = max

    960 ma

    Maximum ratings | f = max. 960 max. 960 Me/s

  • Plate voltage

    400 ma

    Maximum ratings | Va = max. 400 max. 400 V

  • Plate voltage

    400 V

    Maximum ratings | Va = max. 400 max. 400 V

  • Plate current

    45 ma

    Maximum ratings | Ia = max. 2x 45 max. 2 x 50 mA

  • Plate current

    50 mA

    Maximum ratings | Ia = max. 2x 45 max. 2 x 50 mA

  • max

    8 ma

    Maximum ratings | = max. 2x 8 max. 2 x 10 W

  • max

    10 W

    Maximum ratings | = max. 2x 8 max. 2 x 10 W

  • Wia = max

    10 ma

    Maximum ratings | Wia = max. 2 x 10 max. 2 x 12 W

  • Wia = max

    12 W

    Maximum ratings | Wia = max. 2 x 10 max. 2 x 12 W

  • Screen-grid voltage

    225 ma

    Maximum ratings | Vg2 = max. 225 max. 225 V

  • Screen-grid voltage

    225 V

    Maximum ratings | Vg2 = max. 225 max. 225 V

  • Wg

    1.5 ma

    Maximum ratings | Wg2 = max. 2 x 1.5 max. 2 x 1.75 W

  • Wg

    1.75 W

    Maximum ratings | Wg2 = max. 2 x 1.5 max. 2 x 1.75 W

  • pg

    100 ma

    Maximum ratings | -pg1 = max. 100 max. 100 V

  • pg

    100 V

    Maximum ratings | -pg1 = max. 100 max. 100 V

  • max

    4 ma

    Maximum ratings | = max. 2x 4 max. 2 x 5 mA

  • max

    5 mA

    Maximum ratings | = max. 2x 4 max. 2 x 5 mA

  • Plate voltage

    250 V

    Maximum ratings | Va = 250 250 V

  • Control-grid voltage

    -15 V

    Maximum ratings | Vg1 -15 -15 V

  • Plate current

    40 mA

    Maximum ratings | Ia = 2x35 2x 40 mA

  • Ig

    15 mA

    Maximum ratings | Ig2 15 15 mA

  • Control-grid current

    0.75 mA

    Maximum ratings | Ig1 = 2 x 0.75 2 x 0.75 mA

  • Wia

    10 W

    Maximum ratings | Wia = 2 x 8.8 2 x 10 W

  • qa

    5.4 W

    Maximum ratings | qa = 2 x 5.4 2 x 5.4 W

  • Published electrical value

    2.9 W

    Maximum ratings | 3g2 2.5 2.9 W

  • Wdr

    1.4 W

    Maximum ratings | Wdr3) 1.4 1.4 W

  • Wo

    8 W

    Maximum ratings | Wo 7 8 W

  • w~

    5 W

    Maximum ratings | w~ 4 ) 4 5 W

  • Adjust Vg

    35 mA

    Maximum ratings | Adjust Vg2 until Ia = 2x35 mA at Wo max.

  • Kegler Vg

    35 mA

    Maximum ratings | Kegler Vg2 jusqu'a ce que Ia = 2x35 mA a Wo max.

  • Vg

    35 mA

    Maximum ratings | Vg2 einstellen his Ia = 2x35 mA wenn Wo max. 1st.

  • Vg

    1 s

    Maximum ratings | Vg2 einstellen his Ia = 2x35 mA wenn Wo max. 1st.

  • Adjust Vg

    40 mA

    Maximum ratings | Adjust Vg2 until Ia = 2x40 mA at Wo max.

  • Regler Vg

    40 mA

    Maximum ratings | Regler Vg2 jusqu'a ce que Ia = 2x40 mA a Wo max.

Data set 02

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Other

  • Cathode: oxide coated Ve [1]

    6.3 V

    FrequencyTripler

  • Cathode: oxide coated Ve [2]

    12.6 V

    FrequencyTripler

  • I, = maX. 2 X 45 max. 2 x

    50 mA

  • Wa = max. 2 X 8 max 2x

    10 W

  • Wia = max. 2 x 10 max 2x

    12 W

  • Vgz = max. 225 max

    225 V

  • wg2 = max. 2 X 1,5 max. 2 x

    1.75 W

  • Vg1 = max. 100 max

    100 V

  • Ig1 = max. 2 X ¢4 max. 2 x

    5 mA

  • Vg = 250

    250 v

  • Vg = -15

    -15 v

  • Igs = 2x 0,75 2 x

    0.75 mA

  • e = 2x 8,8 2 x

    10 W

  • Va = 2x 5,4 2 X

    5.4 W

  • Vg o ® 2,5

    2.9 w

  • War?) = 1,4

    1.4 W

  • Ho = 7

    8 W

  • Wy 4y = 4

    5 W

  • Adjust Vg2 until Ia 2x3

    5 mA

  • Régler Vgz jusqu' a ce que Ia 2X3

    5 mA

  • Vgo einstellen bis Ia 2x3

    5 mA

  • Ad just Vg2 until Ia 2x4

    0 mA

  • Régler Vg2 jusqu’ a ce que Ia 2x4

    0 mA

  • Vg2 einstellen bis Ia = 2x4

    0 mA

  • Va = max 400 mnax

    400 V

  • Ia = max 2 x 40 max 2 x

    40 mA

  • Vg = max. 2x8 max. 2x

    10 W

  • Vg2 = max. 225 max

    250 V

  • Vgh = max. 100 max

    100 V

  • f = 320/960 320/

    960 Mc/s

  • Va = 250

    250 V

  • Vgg = 150

    170 V

  • Ia = 2 x 37,5 2 X

    40 mA

  • Ig, = 15

    16 mA

Capacitance

  • Capacitances (each system) Ca

    1.35 pF

  • Cagr

    0.145 pF

  • Typical characteristics Va

    350 V

  • Cag1

    0.745 pF

  • Caractéristiques types Va

    350 v

  • Kenndaten Vgz

    200 V

  • Ia

    25 mA

Characteristic

  • Ia = 25 m4

    10.5 mA

  • Températures Scellements des broches max

    220 °C

  • Bulb, ampoule, Kolben max

    220 °C

  • Cathode: oxide coated Ve =6,3V10%

    12.6 V

    FrequencyTripler

  • Cap301tanc?s (each systemg Ca

    1.35 pF

  • Bulbd, ampoule, Kolben max

    220 °C

  • circult connector at

    960 Mc/s

  • anode-circuit accorde

    960 MHz

  • bel

    960 Hz