KTZ63

Screened detector and amplifier pentode with broad receiver usefulness. Manufacturer documentation supports detector, RF and AF amplifier, oscillator, and triode-connected operation, making it unusually flexible among receiving pentodes.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 6.3 V / 300 mA

Description

Screened detector and amplifying pentode KTZ63/6J7G; usable as detector, HF/LF amplifier, triode-connected stage, or oscillator.

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: 300 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

Pentode

X-ray radiationInterelectrode capacitances

Transconductance: 0.00123 S
Max plate voltage: 250 V
Max screen voltage: 125 V

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

Pentode

Other

Grid-All Capacitance
4.7 pF
Anode-All Capacitance
9.9 pF
Anode-Grid Capacitance
0.0038 pF
Typical Anode Voltage
250 V
Typical Screen Voltage
100 V
Typical Grid Bias
-3 V
Triode-Connected Service
1 boolean
Oscillator Service
1 boolean