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
5BHP1
Five-inch direct-view oscilloscope CRT with electrostatic focusing and deflection and a P1 green medium-persistence screen. Its high-voltage beam system supports bright, precise waveform presentation in instrumentation.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- 14AG
- Socket code
- DIHEPTAL12
- Base pins
- 12
- Nominal heater
- 6.3 V / 600 mA
Description
Sylvania 5-inch cathode-ray tube with electrostatic focus, electrostatic deflection, and P1 green, medium persistence. Published electrical ratings, capacitances, and operating conditions were extracted from the supplied datasheet.
Socket description
Medium-shell Diheptal 12-contact CRT base
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- 14AG
- Socket code
- DIHEPTAL12
- Base pins
- 12
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 600 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
14AG - 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
- 13200 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
Characteristic
Heater Voltage
6.3 V
Heater Current
600 mA
FocusingMethod
Electrostatic
DeflectionMethod
Electrostatic
Phosphor
P1 green, medium persistence
MinimumUsefulScreen
4.5 in
Cathode To All Capacitance
4.6 pF
GridToAllCapacitance
6.4 pF
BetweenDeflectionPlates1_2Capacitance
1.9 pF
BetweenDeflectionPlates3_4Capacitance
1.5 pF
PostAcceleratorHelixResistance
200 to 600 Mohm
PatternDistortionMaximum
1.5 %
UndeflectedSpotPositionMaximum
5 mm
UsefulScanD1D2
10 cm
UsefulScanD3D4
4 cm
Other
FinalAnodeVoltageMaximum
13200 V
Anode2VoltageMaximum
2200 V
FocusElectrodeVoltageMaximum
880 V
FinalAnodeVoltage
10000 V
Anode2Voltage
1670 V
FocusElectrodeVoltageForFocus
180 to 590 V
GridVoltageForCutoff
-50 to -80 V
GridCircuitResistanceMaximum
1.5 Mohm
DeflectionFactorPlates1_2
70 to 85 V/in
DeflectionFactorPlates3_4
15 to 18.3 V/in
Anode2InputMaximum
6 W
IsolationShieldVoltageMaximum
2300 V
DeflectionPlateShieldVoltageMaximum
2300 V
Anode3ToAnode2VoltageRatioMaximum
6
PeakVoltageAnode2ToDeflectionPlate
550 V