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Voltage - Triode (single high frequency) ·Triode

7553

High-mu ceramic-metal pencil triode for low-noise RF amplifier service through the UHF and microwave region.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: B9A
Base pins: -
Nominal heater: 6.3 V / 225 mA

Description

High-mu ceramic-metal pencil triode for low-noise RF amplifier service through the microwave/UHF region.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: B9A
Base pins: -
Nominal heater voltage: 6.3 V
Nominal heater current: 225 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: 3000 Ω
Transconductance: 0.013 S
Amplification factor: 80
Max plate voltage: 250 V
Max plate dissipation: 2.5 W
Max cathode current: 25 mA

High-mu ceramic-metal pencil RF triode.

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 3 of 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Heater voltage
6.3 V
Heater current
225 mA
Plate supply voltage
125 V
LowNoiseRF
Cathode resistor
50 ohm
LowNoiseRF
Plate current typical
13 mA
LowNoiseRF
Power gain minimum
14 dB
550MHz
Noise figure maximum
7 dB
550MHz
Maximum plate voltage
250 V
Maximum plate current
25 mA
Maximum plate dissipation
2.5 W

Characteristic

Amplification factor minimum
60
EquipmentDesign
Amplification factor maximum
100
EquipmentDesign
Transconductance minimum
10000 uS
EquipmentDesign
Transconductance maximum
16000 uS
EquipmentDesign