cpi
|
3cx20,000a3
cpi | 4cW50,000J
3cx20,000a3
The 3CX20,000A3 is a forced air cooled, ceramic/
metal, medium-mu power triode designed primar-
ily for use in industrial radio frequency heating
services. Input of 84 kW is permissible up to 90
MHz. Plentiful reserve emission is available from
its 1600 watt filament. The grid structure is rated
at 800 watts, making this tube an excellent choice
for industrial service.
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
20,000 Watts
---
750 Watts
90 MHz
20
Thoriated Tungsten
10.0 Volts
160 Amps
Grounded Cathode
70.0 pf
2.3 pf
43 pf
---
--- pf
--- pf
--- pf
Forced Air
Coaxial
SK-1300
---
---
10.00 in; 254.0 mm
8.00 in; 203.0 mm
19.5 oz; 8.8 kg
type of service
grid driven RF amplifier
MaxiMuM Ratings
plate
Voltage
(Volts)
12,000
6,500
8,000
8,000
plate
current
(amps)
8.0
5.5
8.0
8.0
ypical OpeRatiOn
t
plate
current
(amps)
7.9
5.0
7.4
14.8
Drive
Output
power power
(Watts) (kiloWatts)
960
1,500
400
800
64.0
27.5
40.0
80.0
class of
Operation
c
c
aB
aB
plate
screen
Voltage Voltage
(Volts)
(Volts)
10,000
6,500
7,500
7,500
---
---
---
---
grid driven RF amplifier plate modulated
grid driven RF linear amplifier
grid driven aF amplifier or modulator
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
:
1(800) 414-8823.
fax
:
(650) 592-9988 |
email
:
powergrid@cpii.com
CPI [ COMMUNICATIONS & POWER INDUSTRIES, INC. ]
