Data set 01
1950 Sylvania
Published operating points and test conditions from this source.
SECTION 1
Cathode Ray
Characteristics
Deflection method
Electrostatic
Focusing method
Electrostatic
Specialized - Cathode Ray ·CathodeRay
5UP7
Five-inch P7 cathode-ray instrument tube for oscillographic and measurement display, with manufacturer-specified electrostatic focusing, deflection, and beam-control characteristics.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- 12E
- Socket code
- DUODECAL11
- Base pins
- 12
- Nominal heater
- 6.3 V / 600 mA
Description
Five-inch electrostatic-focus/electrostatic-deflection CRT; P7 blue-white/yellow, long persistence.
Socket description
Duodecal 11-contact CRT base
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- 12E
- Socket code
- DUODECAL11
- Base pins
- 12
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 600 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
12E - 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
- 2500 V
CRT maximum accelerating/anode/ultor voltage is promoted to MaxPlateVoltage; additional electrode ratings, capacitances, operating conditions, deflection/focus and optical data are preserved as parameters.
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
Electrostatic
Phosphor
P7 blue-white/yellow, long persistence
MinimumUsefulScreenDiameter
4.5 in
GridToAllCapacitance
8 pF
BetweenDeflectionPlates1_2Capacitance
2.5 pF
BetweenDeflectionPlates3_4Capacitance
2.5 pF
DeflectionPlate1ToAllCapacitance
11 pF
DeflectionPlate2ToAllCapacitance
8 pF
DeflectionPlate3ToAllCapacitance
7 pF
DeflectionPlate4ToAllCapacitance
8 pF
Other
Anode2VoltageMaximum
2750 V
Anode1VoltageMaximum
1100 V
GridNegativeBiasMagnitudeMaximum
220 V
GridPositiveBiasMaximum
0 V
GridPositivePeakVoltageMaximum
2 V
HeaterCathodeVoltageMaximum
140 V
HeaterNegative
HeaterCathodeVoltageMaximum
140 V
HeaterPositive
PeakVoltageAnode2ToDeflectionPlate
550 V
Anode2Voltage
2000 V
Anode1VoltageForFocus
340 to 640 V
GridVoltageForCutoff
-90 V
DeflectionFactorD1D2
56 to 77 V/in
DeflectionFactorD3D4
46 to 62 V/in
GridCircuitResistanceMaximum
1.5 Mohm
DeflectionCircuitResistanceMaximum
5 Mohm
Data set 03
1971 RCA HB3 Binder 1 of 7
Published operating points and test conditions from this source.
SECTION 1
Cathode Ray
Other
Maximum anode 1 voltage
1000 V
Maximum grid 1 negative-bias voltage
200 V
NegativeBias
Maximum grid 1 positive-bias voltage
0 V
PositiveBias
Maximum grid 1 positive-peak voltage
2 V
PositivePeak
Maximum peak voltage between anode 2 and any deflecting electrode
500 V
Peak heater-cathode voltage
125 V
HeaterNegative
Peak heater-cathode voltage
125 V
HeaterPositive
Maximum accelerating/anode voltage
2500 V
ANOGE-No.2 • VOLTAGE
2500 V
Maximum
ANODE-No.l VOLTAGE
1000 V
Maximum
AND ANY DEFLECTING ELECTRODE
500 V
Maximum
Anode-tio.l Voltage 170 - 32D 340
640 V
Grid-No.l-Circuit Resistance
1.5 MΩ
Maximum
Capacitance
Grid 1 to all other electrodes capacitance
8 pF
Approximate
Characteristic
Current
600 mA
Grid No.l to All Other Electrodes
8 pF
DJ1 to All Other Electrodes
11 pF
DJ2 to All Other Electrodes
8 pF
DJ3 to All Other Electrodes. ._
7 pF
DJ4 to All Other. Electrodes
8 pF