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Power - Tetrode (NOT beam) (over 1000V 100W) ·Tetrode

RS2052CV

High-power transmitting tetrode designed primarily for broadcast, FM, VHF, medium-wave, or short-wave transmitter RF power service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
16 V / 260 A

Description

Coaxial metal-ceramic tetrode, vapor-cooled, particularly suitable for 100 kW broadcast transmitters Emission current at UA = UG2 = UG1 = 600 V I em 150 A Transconductance at UA = 4 kV, UG2 = 1000 V, I A = 5 A s 90 mA/V Cathode connecting strip (2 for each tube) RöKat363 Q81-X1174

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
16 V
Nominal heater current
260 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

Tetrode

X-ray radiationInterelectrode capacitances
Transconductance
0.09 S
Amplification factor
5
Max plate voltage
12000 V
Max screen voltage
900 V
Max plate dissipation
120000 W
Max screen dissipation
2500 W
Max grid dissipation
800 W
Max cathode current
25 A

Maximum ratings promoted from published rating tables; additional condition-specific values preserved in parameters.

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 Siemens

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Characteristics

  • Amplification factor

    5

  • Transconductance

    90000 µS

  • Emission current at UA = UG2 = UG1 = 600 V

    150 A V

  • Amplification factor of screen grid

    5,0

  • at UA = 4 kV, UG2 = 800

    1200 V, I A = 5 A kV

  • Transconductance at UA = 4 kV, UG2 = 1000 V, I A = 5

    90 mA/V kV

Other

  • Heater voltage

    16 V V

  • Heater current

    ≈ 260 A A

  • Frequency

    30 MHz MHz

  • Anode voltage (dc)

    12 kV kV

  • Screen grid voltage (dc)

    900 V V

  • Control grid voltage (dc)

    – 800 V V

  • Cathode current (dc)

    25 A A

  • Peak cathode current

    150 A A

  • Anode dissipation

    120 kW kW

  • Screen grid dissipation

    2500 W W

  • Control grid dissipation

    800 W W

  • Frequency

    ≤ 30 ≤ 30 MHz MHz

  • Carrier power

    110 110 kW 1) kW

  • Anode voltage (dc)

    11 10 kV kV

  • Screen grid voltage (dc)

    800 800 V V

  • Control grid bias (dc), fixed

    – 250 – 250 V V

  • Control grid resistance

    440 350 Ω Ω

  • Peak control grid voltage (ac)

    820 850 V V

  • Anode current (dc)

    12,4 14 A A

  • Screen grid current (dc)

    1,6 2,0 A A

  • Control grid current (dc)

    0,8 1,0 A A

  • Anode input power

    136 140 kW A

  • Drive power

    590 760 W 1) W

  • Anode dissipation

    26 30 kW 2) kW

  • Screen grid dissipation

    1280 1600 W W

  • Control grid dissipation

    110 160 W W

  • Efficiency

    81 79 %

  • Anode load resistance

    470 380 Ω Ω

  • Modulation factor

    100 100 %

  • Peak screen grid voltage (ac)

    700 700 V 3) V

  • Modulation power

    68 70 kW kW

  • Control grid current (dc)

    1,0 1,3 A 4) A

  • Drive power

    800 1000 W 1)4) W

  • Anode dissipation at modulation

    45 50 kW 5) kW

  • Screen grid dissipation at modulation

    1600 2000 W 4) W

  • modulation the anode dissipation increases

    1,5 times the power dissipation stated for the carrier value.

  • Transmitter Tetrode

    2052 CV

  • The temperature of the metal-ceramic seals must not

    220 °C at any point. Sufficient cooling

Capacitance

  • Cathode/control grid

    ≈ 160 pF pF

  • Cathode/screen grid

    ≈ 20 pF pF

  • Cathode/anode

    ≈ 0,7 pF 1) pF

  • Control grid/screen grid

    ≈ 240 pF pF

  • Control grid/anode

    ≈ 5,0 pF 1) pF

  • Screen grid/anode

    ≈ 80 pF pF

  • Transmitter Tetrode

    2052 CV

Cooling

  • (PA + PG + 0,8 PF )

    125,5 kW PF

  • Equivalent thermal

    7520 kJ/min (2700 kcal/min)

  • at returning water temperature

    20 °C approx. 2,8 l/min l/min

  • at returning water temperature

    90 °C approx. 3,3 l/min l/min

  • at returning water temperature

    20 °C approx. 4,9 m 3/min

  • at returning water temperature

    90 °C approx. 5,6 m 3/min

  • The tube fuse RöSich4 is recommended for protecting the vapor-cooled version

    2052 CV

  • Transmitter Tetrode

    2052 CV