4PR60C Datasheet, PDF (1/1 Pages) Communications & Power Industries, Inc. – Switch Tube or PU lse Modulator

4PR60C / 8252W
The 4PR60C/8252W is intended for pulse modu-
lator service in circuits employing inductive or
resistive loads. This tube unilaterally replaces the
715C, the 5D21 and the 4PR60B/8252. The internal
structure of the tube has been strengthened to
minimize the effects of shock and vibration. The
4PR60C/8252W has a maximum plate dissipation
rating of 60 watts, and is cooled by radiation and
convection, and delivers pulse output power in the
region of 300 kW with less than one kW of pulse
driving power.
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
60 Watts
8 Watts
1 Watts
N/A
N/A
Oxide Coated
26.0 Volts
2.1 Amps
Grounded Cathode
43.0 pf
8.5 pf
1.5 pf
N/A
N/A
N/A
N/A
Radiation and Forced Air
4-Pin Special
N/A
N/A
N/A
6.00 in; 152.40 mm
3.06 in; 77.90 mm
12 oz; 0.34 kg

Maximum Ratings Typical Operation
Class of Type of Service Plate Plate Plate Screen Plate Drive Output
Operation
Voltage Current
Voltage Voltage Current Power Power

(Volts) (Amps)
(Volts) (Volts) (Amps) (Watts) (kiloWatts)
--- Switch Tube or PUlse Modulator
20,000 18.0
20 000 1,250
18.0
---
337.0
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 MPP products, visit our website at: www.cpii.com,
or contact: CPI Microwave Products Division, Eimac Operation,607 Hansen Way, Palo Alto, CA 94303
telephone: [phone]. fax: [phone] | email: [e-mail]