Data set 01
1950 Sylvania
Published operating points and test conditions from this source.
Cathode Ray
Characteristics
Phosphor
P4
Deflection method
Magnetic
Focusing method
Electrostatic
Specialized - Cathode Ray ·CathodeRay
Twenty-three-inch direct-view monochrome television picture tube with electrostatic focusing, magnetic deflection, and an aluminized P4 screen. Manufacturer documentation places it in the high-voltage receiver CRT family used for bright rectangular picture presentation.
23ARP4 direct-view television picture tube with aluminized P4 screen and magnetic deflection.
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-specific ratings, operating conditions, capacitances, focus/deflection, cutoff, optical, and screen data are retained in section 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.
Phosphor
P4
Deflection method
Magnetic
Focusing method
Electrostatic
Data set 02
Published operating points and test conditions from this source.
/"~ LOW-VOLTAGE ELECTROSTATIC FOCUS — published value 1
1 V
Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
/"~ LOW-VOLTAGE ELECTROSTATIC FOCUS — published value 2
10 V
Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Grid No.l to al l other electrodes
6 pF
Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
External conductive coating to anode
2500 mA
Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Heater Current at 6.3 V — published value 1
6.3 mA
Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Heater Current at 6.3 V — published value 2
600 mA
Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Heater Current at 6.3 V — published value 3
30 mA
Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Light transmission (Approx.)
76
Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Projected Area of Screen
282
Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Grid-No.2 Voltage
550 V
Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Heater Voltage
6.9 V
Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Combined AC and DC voltage
200 V
Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Anode Voltage
16000 V
Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Grid-No.4 Voltage — published value 1
0 V
Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Grid-No.4 Voltage — published value 2
400 V
Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Grid-No.2 Voltage
400 V
Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Cathode Voltage — published value 1
43 V
Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Cathode Voltage — published value 2
78 V
Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Grid-No. l Circuit Resistance
1.5 mA
Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.