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6088

Directly heated subminiature power pentode designed for portable, wearable, or low-battery-drain output-amplifier service.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: 512AX
Socket code: -
Base pins: -
Nominal heater: 1.25 V / 20 mA

Description

The 6088 is a low-current subminiature power-amplifier pentode for portable and wearable equipment, using flexible wire leads that may be soldered or welded directly into circuits.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 512AX
Socket code: -
Base pins: -
Nominal heater voltage: 1.25 V
Nominal heater current: 20 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

512AX - 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: 700000 Ω
Transconductance: 0.000625 S
Max plate voltage: 67.5 V
Max screen voltage: 67.5 V
Max cathode current: 1.5 mA

Published maximum ratings, representative operating conditions, and rectifier data reviewed.

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

1938 Raytheon

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristics

Heater or filament voltage
1.25 V
Published nominal value
Heater or filament current
20 mA
Published nominal or representative value
Transconductance
625 µS
Published characteristic

Data set 02

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

Maximum plate voltage
67.5 V
Published handbook rating
Maximum screen voltage
67.5 V
Published handbook rating
Plate voltage
45 V
ClassA
Screen voltage
45 V
ClassA
Control-grid bias
1.25 V
ClassA
Plate current
0.65 mA
ClassA
Screen current
0.15 mA
ClassA
Load resistance
80000 ohm
ClassA
Power output
0.0105 W
ClassA

Characteristic

Plate resistance
700000 ohm
Published handbook characteristic
Transconductance
625 µS
Published handbook characteristic
Heater/filament voltage
1.25 V
Published heater/filament rating
Heater/filament current
20 mA
Published heater/filament rating

Data set 03

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

Plate Voltage
45 V
Service
Portable or wearable low-current power amplifier

Data set 04

1966 Tung Sol Electronic Tubes 4 of 4

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

Maximum filament voltage
1.25 V
WholeTube
Maximum plate voltage
67.5 V
WholeTube
Maximum screen-grid voltage
67.5 V
WholeTube
Maximum cathode current
1.5 mA
WholeTube
Filament voltage
1.25 V
TypicalOperation
Filament current
20 mA
TypicalOperation
Plate voltage
45 V
TypicalOperation
Screen-grid voltage
45 V
TypicalOperation
Control-grid voltage
-1.25 V
TypicalOperation
Zero-signal plate current
650 uA
TypicalOperation
Zero-signal screen-grid current
150 uA
TypicalOperation
Transconductance
625 uS
TypicalOperation
Plate resistance
700000 ohm
TypicalOperation
Load resistance
80000 ohm
TypicalOperation
Power output
10.5 mW
TypicalOperation
Distortion
10 percent
TypicalOperation