Data set 01
1960 Du Mont
Published operating points and test conditions from this source.
SECTION 1
Cathode Ray
Characteristic
Heater Voltage
6.3 V
Heater Current
600 mA
DeflectionMethod
Magnetic
FocusingMethod
Electrostatic
Phosphor
P7
Radar
Specialized - Cathode Ray ·CathodeRay
7ABP7
Seven-inch cathode-ray tube with electrostatic focusing and magnetic deflection, specifically designed for radar displays. Its P7 phosphor provides long-persistence radar trace visibility.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- 1M
- Socket code
- DUODECAL6
- Base pins
- 6
- Nominal heater
- 6.3 V / 600 mA
Description
Seven-inch cathode-ray tube with electrostatic focusing and magnetic deflection, designed for radar displays with P7 phosphor.
Socket description
Small-shell Duodecal 6-contact CRT base
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- 1M
- Socket code
- DUODECAL6
- Base pins
- 6
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 600 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
1M - 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
Cathode Ray
X-ray radiationInterelectrode capacitances
- Max plate voltage
- 11000 V
Published Du Mont ratings and characteristics retained from the supplied source.
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
1965 Sylvania Electronic Tubes Vol3
Published operating points and test conditions from this source.
SECTION 1
Cathode Ray
Characteristic
Heater Voltage
6.3 V
Heater Current
600 mA
FocusingMethod
Electrostatic
DeflectionMethod
Magnetic
Deflection Angle
39 degree
Phosphor
P7 blue-white/yellow, long persistence
MinimumUsefulScreen
6 in
Cathode To All Capacitance
5 pF
Grid1 To All Capacitance
6 pF
Other
Grid1CircuitResistanceMaximum
1.5 Mohm
AnodeVoltageMaximum
11000 V
FocusElectrodeVoltageMinimum
-550 V
FocusElectrodeVoltageMaximum
1100 V
Grid2VoltageMaximum
770 V
Grid1NegativeBiasMagnitudeMaximum
200 V
HeaterCathodeVoltageMaximum
200 V
Anode Voltage
7000 V
FocusElectrodeVoltage
0 to 250 V
Grid2 Voltage
300 V
Grid1VoltageForCutoff
-28 to -72 V