Data set 01
1961 Tung Sol
Published operating points and test conditions from this source.
SECTION 1
Cathode Ray
Other
Grid2VoltageMaximum
410 V
CRT
HeaterCathodeVoltageMaximum
150 V
Specialized - Cathode Ray ·CathodeRay
30BP4
Large round direct-view television CRT with gray-filter faceplate, magnetic focusing and deflection, unipotential cathode, and external single-field ion trap. Its high-voltage anode system is rated around 18 kV.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- 12
- Nominal heater
- 6.3 V / 600 mA
Description
The 30BP4 is a large round direct-view television CRT with a grey-filter faceplate, magnetic focusing and deflection, a unipotential cathode and an external single-field ion trap.
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- -
- Base pins
- 12
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 600 mA
- 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
Cathode Ray
X-ray radiationInterelectrode capacitances
- Max plate voltage
- 18000 V
- Max screen voltage
- 410 V
- Rectifier max heater-cathode voltage
- 150 V
Published promoted fields populated from Maximum Ratings / Characteristics / Typical Operation headings.
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
1966 Tung Sol Electronic Tubes 4 of 4
Published operating points and test conditions from this source.
SECTION 1
Cathode Ray
Characteristic
Cathode to all other electrodes capacitance
5 pF
WholeTube
Grid 1 to all other electrodes capacitance
7 pF
WholeTube
Focusing method
Magnetic
WholeTube
Deflecting method
Magnetic
WholeTube
Diagonal deflection angle
90 degree
WholeTube
Phosphor color
White
Screen
Persistence
Medium
Screen
Other
Maximum DC anode/accelerator voltage
30000 V
WholeTube
Maximum DC grid 2 voltage
410 V
WholeTube
Maximum negative grid 1 bias magnitude
125 V
WholeTube
Maximum positive peak grid 1 voltage
2 V
WholeTube
Maximum heater-cathode voltage during warm-up
410 V
Warmup15Seconds
DC anode/accelerator voltage
12000 V
TypicalOperation
DC grid 2 voltage
300 V
TypicalOperation