4CPL1000B Datasheet, PDF (1/1 Pages) Communications & Power Industries, Inc. – Pulse modulator or switch tube

4CPL1000B
The 4CPL1000B tube is designed for switch tube,
pulse modulator, or voltage regulator service. It
will pass anode current up to 8 amperes for pulses
up to 100 microseconds duration, and derated
values of anode current at longer pulse durations.
This tube is designed for immersion in cooling a
liquid dielectric and can dissipate 1,000 watts.
In air with proper cooling, plate dissipatin is 300
watts. The 4CPL1000B has a special support for
environmental stess absorption. This tube is rated
to operate at an anode potential up to 15 kVdc
when immersed in the recommended coolant.
When immersed, the rating is not altitude depen-
dant.
Characteristics
Plate Dissipation (Max.)
Screen Dissipation (Max.)
Grid Dissipation (Max.)
Frequency for Max. rating (CW)
Amplification Factor
Filament/Cathode
Voltage
Current
Capacitance
Input
Output
Feedthrough
Capacitance
Input
Output
Feedthrough
Cooling
Base

Air Socket
Air Chimney
Boiler
Length
Diameter
Weight
1,000 Watts
15 Watts
2 Watts
--- MHz
Oxide Coated
6.3 Volts
4.9 Amps
pf
pf
pf
pf
pf
pf
Liquid or Forced Air
Special with Solder
Terms
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---
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2.71 in; 68.83 mm
3.00 in; 76.20
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Class of
Operation
Maximum Ratings
Typical Operation
Type of Service
Pulse modulator or switch tube
Plate
Voltage
(Volts)
Plate
Current
(Amps)
15,000
8.0
Plate
Voltage
(Volts)
Screen
Voltage
(Volts)
Plate
Current
(Amps)
Drive Output
Power Power
(Watts) (kiloWatts)
7,000
700
The values listed above represent specified limits for the product and are subject to change. The data should be used for basic
information only. Formal, controlled specifications may be obtained from CPI for use in equipment design.
For information on this and other CPI products, visit our website at: www.cpii.com,
or contact: CPI MPP Division, Eimac Operations, 607 Hansen Way, Palo Alto, CA 94303
telephone: [phone]. fax: [phone] | email: [e-mail]