Data set 01
1950 Sylvania
Published operating points and test conditions from this source.
SECTION 1
Cathode Ray
Other
Heater Voltage
6.3 V
Nominal
Heater Current
600 mA
Nominal
Specialized - Cathode Ray ·CathodeRay
5BRP4
Five-inch direct-view instrument CRT with electrostatic focusing, magnetic deflection, an aluminized P4 screen, and approximately 70-degree deflection. Its construction supports bright specialized monitoring and display applications.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- 9HT
- Socket code
- NINAR9
- Base pins
- 9
- Nominal heater
- 6.3 V / 600 mA
Description
Five-inch direct-view CRT with electrostatic focus, magnetic deflection, aluminized screen, and approximately 70-degree deflection.
Socket description
Ninar 9-contact CRT/photomultiplier base family (JEDEC E9-37)
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- 9HT
- Socket code
- NINAR9
- Base pins
- 9
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 600 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
9HT - 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
- 10000 V
Cathode-ray electron-gun/display section.
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
Capacitance
Cathode to all other electrodes capacitance
3 pF
Grid No. 1 to all other electrodes capacitance
6.5 pF
Other
Maximum anode voltage
10000 V
Grid No. 4 focus voltage range
-550 to 1100 V
Maximum grid No. 2 voltage
770 V
Peak heater-cathode voltage, heater negative
180 V
Peak heater-cathode voltage, heater positive
180 V
Typical anode voltage
8000 V
Typical grid No. 4 focus voltage range
-50 to 350 V
Typical grid No. 2 voltage
300 V
Grid No. 1 cutoff voltage range
-45 to -15 V
Characteristics
Typical line width
0.014 in
Maximum undeflected spot-position radius
0.25 in
CircuitValue
Grid No. 1 circuit resistance maximum
1.5 MOhm