Power Triode. 3CX800A7 Datasheet

3CX800A7 Triode. Datasheet pdf. Equivalent

Part 3CX800A7
Description High Mu Power Triode
Feature 3CX800A7 Hi - Mu Power Triode The 3CX800A7 is a compact power triode intended for use as a cathode-.
Manufacture PL
Datasheet
Download 3CX800A7 Datasheet




3CX800A7
3CX800A7
Hi - Mu
Power Triode
The 3CX800A7 is a compact power triode intended for use as a cathode-driven Class AB2 or
Class B amplifier in rf applications including the VHF band. As a linear amplifier, high power gain
may be obtained without sacrifice or low intermodulation distortion characteristics. Low grid
www.DataSheeitn4Ute.crocmeption and high amplification factor combine to make the 3CX800A7 drive power low for a
tube of this power capacity. A single 3CX800A7 will deliver 750 watts PEP and 750 watts key-
down CW output power to 350 MHz. The 3CX800A7 is useful to 600 MHz. The anode is forced-
air cooled for 800 watts of dissipation.
General Characteristics
Electrical
Cathode: Oxide Coated, Unipotential
Heater Voltage........................................................................................ 13.5 +/- 0.6
Heater Current, at 13.5 volts .................................................................... 1.5
Cathode-Heater Potential (maximum) ..................................................... +/- 150
Minimum Warm-up Time (before application of rf drive and high voltage) . 3
Amplification Factor (approximate) .............................................................. 200
Direct Interelectrode Capacitance (grid grounded)
Cin ......................................................................................................... 26.0
Cout ....................................................................................................... 6.1
Cpk ........................................................................................................ 0.05
Highest Frequency for Maximum Ratings...................................................... 350
V
A
V
Min.
pF
pF
pF
MHz
Mechanical
Maximum Overall Dimensions
Length .................................................................................................... 2.52 in; 64.01mm
Diameter ................................................................................................ 2.53 in; 64.26 mm
Net Weight .............................................................................................. 11.5 oz. 326 gm
Operating Position .................................................................................. Any
(Revised 10/13/97)
PENTA LABORATORIES
9740 COZYCORFT AVENUE * CHATSWORTH * CALIFORNIA 91311
(800) 421-4219 * (818) 882-3872 * FAX: (818) 882-3968
ELECTRON TUBES FOR INDUSTRY



3CX800A7
Cooling ................................................................................................... Forced Air
Maximum Operating Temperature:
Ceramic/Metal Seals or Anode Core ................................................. 250O
C
Base ....................................................................................................... Large Wafer Elevenar
11 - Pin with Ring
Absolut Maximum Ratings
(up to 350 MHz)
www.DataSheeDt4UC.coPmlate # .............................................................................................. 2250
DC Plate Current ..................................................................................... 0.6
Plate Dissipation ..................................................................................... 800
Grid Current ............................................................................................ 0.06
Grid Dissipation ...................................................................................... 4.0
Volts
Ampere
Watts
Ampere
Watts
CW/SSB
Plate Voltage .......................................................................................... 2200
Cathode Bias Voltage ............................................................................. +8.2
Zero-Signal Plate Current* ...................................................................... 15
CW Plate Current .................................................................................... 500
CW Power Input ...................................................................................... 1100
Peak Envelope Power Input .................................................................... 1100
Two-Tone Plate Current ^ ......................................................................... 313
CW Grid Current* .................................................................................... 36
Two-Tone Grid Current*^ .......................................................................... 16
Peak rf Cathode Voltage* ........................................................................ 64
Peak Driving Power * .............................................................................. 23
Useful Power Output## ............................................................................ 750
Useful Power Output, PEP ##.................................................................. 750
Cathode Inout Impedance ........................................................................ 54
Resonant Load Impedance ..................................................................... 2700
Intermodulation Distortion **
3rd Order Products ............................................................................ -36
5th Order Products ............................................................................ -32
Vdc
Vdc
mAdc
mAdc
W
w
mAdc
mAdc
mAdc
v
w
W
w
Ohms
Ohms
dB
dB
* - Approximate Value
** - Ref. agaisnt 1 tone of a 2-equal-tone signal
# - Plate voltage may rise to 2500 volts maximum under no-signal conditions to account for power
supply regulation.
## - Measured at the load.
^ - Value will be lower with voice modulation for the same PEP level.
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