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Power - Tetrode (NOT beam) ·Tetrode

KT67

High-slope output tetrode designed for series-stabilizer, video-amplifier, and cathode-follower service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
B9G
Socket code
-
Base pins
9
Nominal heater
6.3 V / 500 mA

Description

High-slope HF output tetrode for series-stabilizer, video-amplifier, or cathode-follower service.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
B9G
Socket code
-
Base pins
9
Nominal heater voltage
6.3 V
Nominal heater current
500 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

B9G - 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
0.013 S
Max plate voltage
600 V
Max screen voltage
300 V
Max plate dissipation
22 W
Max screen dissipation
3 W

Promoted values mapped from printed rating/approximate-data tables; additional operating points and capacitances retained as 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

1955 Marconi

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Other

  • Fixed-Bias Grid Resistance Maximum

    100 kohm

  • Auto-Bias Grid Resistance Maximum

    270 kohm

  • Input Resistance at 45MHz

    5 kohm

  • Anode-Grid Capacitance

    0.08 pF

  • Input Capacitance

    17.5 pF

  • Output Capacitance

    9 pF

  • Triode-Connected Voltage Maximum

    300 V

  • Triode-Connected Dissipation Maximum

    25 W