DL192

Battery output pentode for low-frequency power amplification with selectable 1.4 V or 2.8 V filament operation. Its flexible filament arrangement supports portable audio output stages.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: B7G
Base pins: 7
Nominal heater: 2.8 V / 50 mA

Description

Battery output pentode for low-frequency power amplification with selectable 1.4 V or 2.8 V filament operation.

Socket description

Miniature 7-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: B7G
Base pins: 7
Nominal heater voltage: 2.8 V
Nominal heater current: 50 mA
Parallel heater voltage: 1.4 V
Parallel heater current: 100 mA
Series capable: Yes

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

Plate resistance: 100000 Ω
Transconductance: 0.0015 S
Max plate voltage: 120 V
Max screen voltage: 70 V
Max plate dissipation: 0.85 W
Max screen dissipation: 0.22 W
Max cathode current: 12 mA

Published ratings and characteristics promoted from the printed technical data.

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

1953 RFT Rundfunk Technik

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

Maximum Plate Voltage
120 V
Maximum Screen Voltage
70 V
Maximum Plate Dissipation
0.85 W
Maximum Screen Dissipation
0.22 W
Maximum Cathode Current
12 mA