Alternatives & variations Download PDF datasheet

6264A

Pencil-type UHF power triode for RF amplification and frequency multiplication. Compact low-inductance construction supports full ratings around 500 MHz and reduced-rating operation well into the gigahertz region, with approximately 13 W plate dissipation.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: IO
Base pins: -
Nominal heater: 6 V / 280 mA

Description

Pencil-type UHF power triode for RF amplifier and multiplier service.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: IO
Base pins: -
Nominal heater voltage: 6 V
Nominal heater current: 280 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

Triode

X-ray radiationInterelectrode capacitances

Plate resistance: 6000 Ω
Transconductance: 0.0068 S
Amplification factor: 40
Max plate voltage: 400 V
Max plate dissipation: 13 W
Max cathode current: 70 mA

Representative electrical section from supplied RCA data sheet.

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

1960 RCA Industrial and Communications Types

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

Heater Voltage
6 V
Heater Current
280 mA
Amplification Factor
40
Application
Frequency multiplier
MilitaryAndCriticalIndustrial

Data set 02

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Heater voltage
6 V
Nominal
Heater current
280 mA
Nominal
Plate voltage
200 V
Published operating table; OperatingPoint1
Plate voltage
330 V
Published operating table; OperatingPoint1
Plate voltage
400 V
Published operating table; OperatingPoint2
Frequency for full ratings
500 MHz
Maximum reduced-rating frequency
1700 MHz
Altitude for full ratings
60000 ft

Characteristic

Plate current
18.5 mA
Published operating table; OperatingPoint1
Plate current
40 mA
Published operating table; OperatingPoint1
Plate current
55 mA
Published operating table; OperatingPoint2
Plate current
35 mA
Published operating table; OperatingPoint1
Plate current
40 mA
Published operating table; OperatingPoint2
Plate current
33 mA
Published operating table; OperatingPoint1
Plate current
45 mA
Published operating table; OperatingPoint2
Plate current
26 mA
Published operating table; OperatingPoint1
Plate current
36.5 mA
Published operating table; OperatingPoint2

Data set 03

1966 Tung Sol Electronic Tubes 4 of 4

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Heater/filament voltage
6 V
Heater/filament current
280 mA

Application

Application summary
Pencil-type UHF power triode for RF amplifier and multiplier service.

Characteristic

Plate voltage
200 V
Plate current
18.5 mA
Transconductance
6800 uS
Amplification factor
40
Full-ratings frequency
500 MHz
Reduced-ratings frequency
1700 MHz
RF output ICAS at 500 MHz
10 W

Data set 04

1971 RCA HB3 Binder 6 of 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Heater/filament voltage nominal
6 V
WholeTube
Heater/filament current
280 mA
WholeTube
Current at
6 V
Published source row
Current at (value 2)
0 V
Published source row
Current at (value 3)
28 V
Published source row
Transconductance, for do plate ma
18.5 mA
Published source row
DC PLATE VOLTAGE
330 V
Published source row
DC PLATE VOLTAGE (value 2)
400 V
Published source row
DC GRID VOLTAGE
-100 V
Published source row
DC GRID VOLTAGE (value 2)
-100 V
Published source row
DC PLATE CURRENT
40 mA
Published source row
DC PLATE CURRENT (value 2)
55 mA
Published source row
DC GRID CURRENT
25 mA
Published source row
DC GRID CURRENT (value 2)
25 mA
Published source row
DC CATHODE CURRENT
55 mA
Published source row
DC CATHODE CURRENT (value 2)
70 mA
Published source row
PLATE INPUT
13.2 W
Published source row
PLATE INPUT (value 2)
22 W
Published source row
PLATE DISSIPATION
8 W
Published source row
PLATE DISSIPATION (value 2)
13 W
Published source row
DC Plate-to-Grid Voltage
325 V
Published source row
DC Plate-to-Grid Voltage (value 2)
380 V
Published source row
DC Cathode-to-Grid Voltage
25 V
Published source row
DC Cathode-to-Grid Voltage (value 2)
30 V
Published source row
DC Plate Current
35 mA
Published source row
DC Plate Current (value 2)
35 mA
Published source row
DC Grid Current (Approx.)
11 mA
Published source row
DC Grid Current (Approx.) (value 2)
13 mA
Published source row
Useful Power Output (Approx.)
5 W
Published source row
Useful Power Output (Approx.) (value 2)
6 W
Published source row
DC Plate-to-Grid Voltage
263 V
Published source row
DC Cathode-to-Grid Voltage
13 V
Published source row
DC Plate Current
40 mA
Published source row
DC Grid Current {Approx.)
13 mA
Published source row
Useful Power Output (Approx.)
1 W
Published source row
DC Plate-to-Grid Voltage
342 V
Published source row
DC Plate-to-Grid Voltage (value 2)
395 V
Published source row
DC Cathode-to-Grid Voltage+
42 V
Published source row
DC Cathode-to-Grid Voltage+ (value 2)
45 V
Published source row
DC Plate Current
35 mA
Published source row
DC Plate Current (value 2)
40 mA
Published source row
DC Grid Current (Approx.)
13 mA
Published source row
DC Grid Current (Approx.) (value 2)
15 mA
Published source row
Driver Power Output (Approx.)
2.4 W
Published source row
Driver Power Output (Approx.) (value 2)
3 W
Published source row
Useful Power Output (Approx.)
7.5 W
Published source row
Useful Power Output (Approx.) (value 2)
10 W
Published source row
Grid-Circuit Resistance
0.1 Mohm
Published source row
Grid-Circuit Resistance (value 2)
0.1 Mohm
Published source row
DC PLATE VOLTAGE
300 V
Published source row
DC PLATE VOLTAGE (value 2)
350 V
Published source row
DC GRID VOLTAGE
-125 V
Published source row
DC GRID VOLTAGE (value 2)
-140 V
Published source row
DC PLATE .CURRENT
33 mA
Published source row
DC PLATE .CURRENT (value 2)
45 mA
Published source row
DC GRID CURRENT
25 mA
Published source row
DC GRID CURRENT (value 2)
25 mA
Published source row
DC CATHODE CURRENT
45 mA
Published source row
DC CATHODE CURRENT (value 2)
55 mA
Published source row
PLATE INPUT
9.9 W
Published source row
PLATE INPUT (value 2)
15.9 W
Published source row
PLATE DISSIPATION
6 W
Published source row
PLATE DISSIPATION (value 2)
9.5 W
Published source row
DC Plate-to-Grid Voltage
410 V
Published source row
DC Plate-to-Grid Voltage (value 2)
472 V
Published source row

Characteristic

Socket for Heater Pins Grayhill No
22
Published source row
Socket for Heater Pins Grayhill No (value 2)
-3
Published source row
Socket for Heater Pins Grayhill No (value 3)
54
Published source row
Socket for Heater Pins Grayhill No (value 4)
6325
Published source row