GL6848

Metal-ceramic high-power UHF tetrode designed for grounded-grid RF amplifier or oscillator service. Its professional construction supports substantial radio-frequency output.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 6.7 V / 7 A

Description

Metal-and-ceramic high-power UHF tetrode for grounded-grid RF amplifier or oscillator service.

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: 6.7 V
Nominal heater current: 7 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

Tetrode

X-ray radiationInterelectrode capacitances

Max plate voltage: 2500 V
Max plate dissipation: 2000 W

Promoted fields mapped from printed ratings/characteristics headings; specialized published data retained in parameter rows.

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

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Other

ET-TI
658 A
ET-TI658A
Cathode Bombarding Voltage, DC Static Pressure. 3.2 1.5
0.8 in
Cathode Bombarding Voltage, DC Static Pressure. 3.2 1.5 0.8 Inches
ET-T
1658 A
ET-T1658A
DIAMETER A
-0.024 in
DIAMETER A-0.024 INCHES
DIAMETER B
0.024 in
DIAMETER B- 0.024 INCHES
DIAMETER C
0.03 in
DIAMETER C- 0.030 INCHES
DIAMETERD
0.05 in
DIAMETERD- 0.050 INCHES
DIAMETERE
0.05 in
DIAMETERE- 0.050 INCHES