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HT711

High-frequency triode intended for amplification, oscillation, measurement, or microwave-frequency electronic service; available source evidence does not justify a narrower category.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 6 V / 900 mA

Description

A triode intended for amplification, oscillation, measurement, or microwave-frequency service, with source-published heater and electrical characteristics.

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 V
Nominal heater current: 900 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

Transconductance: 0.017 S
Max plate voltage: 600 V
Max plate dissipation: 25 W
Max grid dissipation: 0.7 W
Max cathode current: 72 mA

Published ratings and characteristics promoted from the approved German source. RFT HT711 metal-ceramic microwave power triode without integral heatsink, for amplifiers, multipliers and oscillators to approximately 7 GHz. Its specifications share the HT611 manufacturer datasheet. Indirectly heated metal-capillary cathode, nominal 6 V at 0.9 A. Maximum plate voltage 600 V, plate dissipation 25 W, cathode current 72 mA and grid dissipation 0.7 W. At maximum anode dissipation, additional cooling by conduction to apparatus or forced air of 100 L/min at 20°C inlet and 760 Torr is required.

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

1953 RFT Rundfunk Technik

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

Frequenzen von 6& GHz bei der HT 611 bzw
7 GHz
Frequenzen von 6& GHz bei der HT 611 bzw. 7 GHz bei der HT 711.

Other

Heizstrom If
900 mA
Heizstrom If 0,9 A
Anheizdauer N ca,
2 min
Anheizdauer N ca, 2 min
Ik<
70 mA
Ik<70 mA erfolgt.
Ua
400 V
Ua 400 V Ue MAX. 600 V
Ia 6O mA Pa maxX
25 W
Ia 6O mA Pa maxX. 25 W
Ugb
20 V
Ugb 20 V U max. 50 V
Rk
380 Ohm
Rk 380 Ohm --Ug min. O Y
s
17 mA
s 17 mA/V I8 maxX, 10 mA
} 60 Pin maX,
0.7 W
} 60 Pin maX, 0,7 W
Ix maX
72 mA
Ix maX. 72 mA
Betriebswerte '8'mk max
180 °c
Betriebswerte '8'mk max. 180 °c
f
6 GHz
f 6 GHz
U,
400 V
U, 400 V cgk
U
20 v
U 20 v Ca * 0,02 pF
I8
7 mA
I8 7 mA
Pout
1.8 W
Pout 1,8 W
PublishedValue
20 °C
20 °C bei einem Luftdruck von 760 Torr erforderlich,.