8941

High-frequency triode for RF amplification, oscillation, frequency multiplication, or related VHF/UHF signal service.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 6.3 V / 2.25 A

Description

The EIMAC 8941 is a high-mu ceramic/metal planar triode for airborne, ground, and space pulsed rf service to 2 ghz.

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: 2.25 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

Triode

X-ray radiationInterelectrode capacitances

Transconductance: 0.075 S
Amplification factor: 200
Max plate voltage: 12000 V
Max plate dissipation: 750 W
Max grid dissipation: 2 W
Max cathode current: 12 A

Promoted from printed general-characteristics and absolute-maximum-ratings blocks.

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

1962 Eimac

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

Amplification factor
200
Transconductance
100000 uS

Other

Maximum DC plate voltage
10000 V
Maximum plate dissipation
750 W
Maximum grid dissipation
2 W
Maximum pulse cathode current
16 A

Data set 02

1975 Eimac Tube Manual

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

Heater voltage nominal
6.3 V
Heater current nominal
2.25 A
Transconductance
75000 uS
Amplification factor
200

Capacitance

Input/grid-cathode capacitance
14 pF
Output/plate-cathode capacitance
0.11 pF
Grid-plate/feedback capacitance
2.5 pF

Other

Maximum plate voltage
12000 V
Maximum plate dissipation
750 W
Maximum grid dissipation
2 W
Maximum cathode or pulse plate current
12 A
Maximum rated frequency
2 GHz
Grid-pulsed DC plate voltage
10000 V
GridPulsed
Plate-pulsed peak plate voltage
12000 V
PlatePulsed
Pulse plate current
12 A
Pulse grid current
3 A
Pulse duration
6 us
Duty factor
0.0033
Representative DC plate voltage
5000 V
GridPulsedAmplifier
Representative useful output
10000 W
GridPulsedAmplifier
Representative gain
12 dB
GridPulsedAmplifier

Data set 03

1976 Eimac Tube Manual

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

Heater voltage nominal
6.3 V
Heater current nominal
2.25 A
Transconductance
75000 uS
Amplification factor
200

Capacitance

Input/grid-cathode capacitance
14 pF
Output/plate-cathode capacitance
0.11 pF
Grid-plate/feedback capacitance
2.5 pF

Other

Maximum plate voltage
12000 V
Maximum plate dissipation
750 W
Maximum grid dissipation
2 W
Maximum cathode or pulse plate current
12 A
Maximum rated frequency
2 GHz
Grid-pulsed DC plate voltage
10000 V
GridPulsed
Plate-pulsed peak plate voltage
12000 V
PlatePulsed
Pulse plate current
12 A
Pulse grid current
3 A
Pulse duration
6 us
Duty factor
0.0033
Representative DC plate voltage
5000 V
GridPulsedAmplifier
Representative useful output
10000 W
GridPulsedAmplifier
Representative gain
12 dB
GridPulsedAmplifier