Specialized - Cathode Ray ·CathodeRay
Large P4 monochrome television picture tube documented for high-voltage direct-view service, using magnetic deflection and manufacturer-specified focusing and beam-control arrangements for type 21AUP4.
Direct-view cathode-ray picture tube for television display service. Electrical ratings, operating conditions, capacitances, optical data, and construction details were extracted from the supplied datasheet.
Duodecar 12-contact
General specifications
Properties common to every published source and operating point.
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
1 physical section, each with unique specifications.
Section 1
CRT ratings, operating conditions, capacitances, optical and deflection data retained as parameters.
Source-dependent data
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 01
Published operating points and test conditions from this source.
Heater voltage
6.3 V
Nominal
Heater current
600 mA
Nominal
Maximum grid 2 voltage
500 V
Typical grid 2 voltage
500 V
Typical operating conditions
Horizontal deflection angle
67 deg
Vertical deflection angle
53 deg
Cathode to all other electrodes
1 pF
Approximate
Data set 02
Published operating points and test conditions from this source.
HEATER
6.3 V
Published CRT datasheet value; multiple values on a row correspond to separate source-table conditions or limits.
HEATER POSITIVE WITH RESPECT TO CATHODE
18 V
Published CRT datasheet value; multiple values on a row correspond to separate source-table conditions or limits.
DC GRID #4 VOLTAGES — value 1
4 V
Published CRT datasheet value; multiple values on a row correspond to separate source-table conditions or limits.
DC GRID #4 VOLTAGES — value 2
72 V
Published CRT datasheet value; multiple values on a row correspond to separate source-table conditions or limits.
DC GRID #4 VOLTAGES — value 3
396 V
Published CRT datasheet value; multiple values on a row correspond to separate source-table conditions or limits.
DC GRID #2 VOLTAGE — value 1
2 V
Published CRT datasheet value; multiple values on a row correspond to separate source-table conditions or limits.
DC GRID #2 VOLTAGE — value 2
3 V
Published CRT datasheet value; multiple values on a row correspond to separate source-table conditions or limits.
DC ION TRAP MAGNET (RATED STRENGTH)D
46 mA
Published CRT datasheet value; multiple values on a row correspond to separate source-table conditions or limits.
VOLTAGE SHOULD NO BE 1E55 TX AN 14,000 VOLTS. — value 1
1 V
Published CRT datasheet value; multiple values on a row correspond to separate source-table conditions or limits.
VOLTAGE SHOULD NO BE 1E55 TX AN 14,000 VOLTS. — value 2
14 V
Published CRT datasheet value; multiple values on a row correspond to separate source-table conditions or limits.
VOLTAGE SHOULD NO BE 1E55 TX AN 14,000 VOLTS. — value 3
0 V
Published CRT datasheet value; multiple values on a row correspond to separate source-table conditions or limits.
BFOR FOCUS WITH ANODE CURRENT OF 100 uAMP S.
100
Published CRT datasheet value; multiple values on a row correspond to separate source-table conditions or limits.
I NAGMULH AS THE TUBE RATING PERMITS OPERATION AT VOLTAGES AS HIGH AS 19.8 KILOVOLTS LAB GOLU TE
19.8 V
Published CRT datasheet value; multiple values on a row correspond to separate source-table conditions or limits.
LONDI TIONS INVOLVE
16 V
Published CRT datasheet value; multiple values on a row correspond to separate source-table conditions or limits.
MAXIMUM DC ANODE, GRID #3, GRID #5 VOLTAGE A — value 1
5 V
Published CRT datasheet value; multiple values on a row correspond to separate source-table conditions or limits.
MAXIMUM DC ANODE, GRID #3, GRID #5 VOLTAGE A — value 2
2 V
Published CRT datasheet value; multiple values on a row correspond to separate source-table conditions or limits.
MAXIMUM DC ANODE, GRID #3, GRID #5 VOLTAGE A — value 3
18 V
Published CRT datasheet value; multiple values on a row correspond to separate source-table conditions or limits.
MAXIMUM DC GRID #2 VOLTAGE — value 1
2 V
Published CRT datasheet value; multiple values on a row correspond to separate source-table conditions or limits.
MAXIMUM DC GRID #2 VOLTAGE — value 2
5 V
Published CRT datasheet value; multiple values on a row correspond to separate source-table conditions or limits.
MAXIMUM GRID #1 CIRCUIT RESISTANCE — value 1
1 mA
Published CRT datasheet value; multiple values on a row correspond to separate source-table conditions or limits.
MAXIMUM GRID #1 CIRCUIT RESISTANCE — value 2
1 mA
Published CRT datasheet value; multiple values on a row correspond to separate source-table conditions or limits.
MAXIMUM GRID #1 CIRCUIT RESISTANCE — value 3
5 mA
Published CRT datasheet value; multiple values on a row correspond to separate source-table conditions or limits.