Data set 01
1940 RCA
Published operating points and test conditions from this source.
SECTION 1
Beam Power
Other
Maximum Frequency
500 MHz
RFPowerOutput
105 W
175MHz
Power - Beam (NOT sweep) ·BeamPower
8072
Conduction-cooled coaxial beam-power tube for low-voltage mobile RF amplifier, oscillator, and regulator service, with operation extending to approximately 500 MHz.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- B9A
- Base pins
- 11
- Nominal heater
- 13.5 V / 1.3 A
Description
Conduction-cooled coaxial beam-power tube for low-voltage mobile RF amplifier, oscillator and regulator service to 500 MHz.
Socket description
Small-button Noval 9-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B9A
- Base pins
- 11
- Nominal heater voltage
- 13.5 V
- Nominal heater current
- 1.3 A
- 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
Beam Power
X-ray radiationInterelectrode capacitances
- Max plate voltage
- 2200 V
- Max screen voltage
- 400 V
- Max plate dissipation
- 100 W
- Max screen dissipation
- 8 W
Electrical section extracted 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 02
1971 RCA HB3 Binder 6 of 7
Published operating points and test conditions from this source.
SECTION 1
Beam Power
Characteristic
Heater/filament voltage nominal
13.5 V
WholeTube
Heater/filament current nominal
1.3 A
WholeTube
Grid No
1 pF
Published source row
Grid No (value 2)
16 pF
Published source row
Grid No
2 pF
Published source row
Grid No (value 2)
6.5 pF
Published source row
Grid No
2 pF
Published source row
Grid No (value 2)
3.2 pF
Published source row
Cathode to heater
3.4 pF
Published source row
Published electrical value
250
Published source row
Published electrical value (value 2)
2
Published source row
Grid-No
2 ohm
Published source row
Grid-No (value 2)
10000 ohm
Published source row
is Inc re8
5
Published source row
tion; e.g., et
470 MHz
Published source row
tion; e.g., et (value 2)
12.5 MHz
Published source row
conditions, the average plate current may De as high as
450 mA
Published source row
techniques, maximum plate dissipation may De only about
100 W
Published source row
represents the app roximate gritl-No
1
Published source row
initial electron velocities antl contact-potential effects when grid No
1
Published source row
the peak current tnro ugh the tube under surge conditions to
15
Published source row
Published electrical value
1 A
Published source row
Published electrical value (value 2)
1 A
Published source row
Published electrical value (value 3)
1.15 A
Published source row
Other
Voltage range (AC or DC)e
12 V
Published source row
Voltage range (AC or DC)e (value 2)
0 V
Published source row
Voltage range (AC or DC)e (value 3)
15 V
Published source row
Current (Approx.) at
13.5 V
Published source row
Current (Approx.) at (value 2)
1.3 V
Published source row
Minimum heating time
60 s
Published source row
Mu-Factor, Grid No
2
Published source row
for plate volts =
250 V
Published source row
for plate volts = (value 2)
2 V
Published source row
DC PLATE VOLTAGE
2200 V
Published source row
DC GRID-No
2 V
Published source row
DC GRID-No (value 2)
400 V
Published source row
DC GRID-No
1 V
Published source row
DC GRID-No (value 2)
-100 V
Published source row
DC PLATE CURRENT AT PEAK OF ENVELOPE
450 mA
Published source row
DC GRID-No.l CURRENT
100 mA
Published source row
PLATE DISSIPATION
100 W
Published source row
GRID-No
2 W
Published source row
GRID-No (value 2)
8 W
Published source row
DC Plate Voltage
700 V
Published source row
DC Grid-No
2 V
Published source row
DC Grid-No (value 2)
250 V
Published source row
DC Grid-No.l Voltage9
-20 V
Published source row
Zero-Signal DC Plate Current
100 mA
Published source row
Effective RF Load Resistance
1420 ohm
Published source row
DC Grid-No
2
Published source row
Output-Circuit Efficiency (Approx.)
95
Published source row
Grid-No
2 ohm
Published source row
Grid-No (value 2)
10000 ohm
Published source row
DC PLATE VOLTAGE
2200 V
Published source row
DC GRID-No
2 V
Published source row
DC GRID-No (value 2)
400 V
Published source row
DC GRIP-No.l VOLTAGE
-100 V
Published source row
DC PLATE CURRENT
300 mA
Published source row
DC GRID-No
1 mA
Published source row
DC GRID-No (value 2)
100 mA
Published source row
GRID-No
2 W
Published source row
GRID-No (value 2)
8 W
Published source row
PLATE DISSIPATION
100 W
Published source row
at frequency of
5
Published source row
at frequency of (value 2)
5
Published source row
at frequency of (value 3)
47
Published source row
DC Plate Voltage
500 V
Published source row
DC Plate Voltage (value 2)
700 V
Published source row
DC Plate Voltage (value 3)
500 V
Published source row
DC Plate Voltage (value 4)
700 V
Published source row
DC Plate Voltage (value 5)
700 V
Published source row
DC Grid-No
2 V
Published source row
DC Grid-No (value 2)
160 V
Published source row
DC Grid-No (value 3)
175 V
Published source row
DC Grid-No (value 4)
200 V
Published source row
DC Grid-No (value 5)
200 V
Published source row
DC Grid-No (value 6)
200 V
Published source row
DC Grid-No.l Voltage
-10 V
Published source row
DC Grid-No.l Voltage (value 2)
-10 V
Published source row
DC Grid-No.l Voltage (value 3)
-30 V
Published source row
DC Grid-No.l Voltage (value 4)
-30 V
Published source row
DC Grid-No.l Voltage (value 5)
-30 V
Published source row
DC Plate Current
300 mA
Published source row
DC Plate Current (value 2)
300 mA
Published source row
DC Plate Current (value 3)
300 mA
Published source row
DC Plate Current (value 4)
300 mA
Published source row
DC Plate Current (value 5)
300 mA
Published source row
DC Grid-No
2 mA
Published source row
DC Grid-No (value 2)
25 mA
Published source row
DC Grid-No (value 3)
25 mA
Published source row
DC Grid-No (value 4)
30 mA
Published source row
DC Grid-No (value 5)
20 mA
Published source row
DC Grid-No (value 6)
10 mA
Published source row
DC Grid-No.l Current
50 mA
Published source row
DC Grid-No.l Current (value 2)
50 mA
Published source row
DC Grid-No.l Current (value 3)
40 mA
Published source row
DC Grid-No.l Current (value 4)
40 mA
Published source row
DC Grid-No.l Current (value 5)
20 mA
Published source row