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CK511X

Directly heated Raytheon subminiature pentode for low-voltage battery-powered voltage amplification, typically operating near 45 V plate supply.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: 6C
Socket code: -
Base pins: 6
Nominal heater: 1.25 V / 50 mA

Description

CK511X is a directly heated Raytheon subminiature pentode listed for voltage amplifier service. The summary table specifies a 1.25-V, 50-mA filament and a typical 45-V plate operating point.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 6C
Socket code: -
Base pins: 6
Nominal heater voltage: 1.25 V
Nominal heater current: 50 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

6C - 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: 220000 Ω
Transconductance: 0.00022 S

Published values are typical summary-table operating/characteristic data, not maximum ratings.

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

195X Raytheon Special Purpose Tubes

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

Plate Voltage
45 V
Typical operating point; Voltage Amp.
Grid 1 Voltage
0 V
Typical operating point; Voltage Amp.
Grid 2 Voltage
45 V
Typical operating point; Voltage Amp.
Plate Current
0.24 mA
Typical operating point; Voltage Amp.
Grid 2 Current
0.2 mA
Typical operating point; Voltage Amp.
Output Power
30 mW
Typical operating point; Voltage Amp.
Load Resistance
1 MOhm
Typical operating point; Voltage Amp.
Maximum Length
1.75 in
Maximum dimension
Maximum Diameter
0.55 in
Maximum dimension