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17AVP4A

P4 cathode-ray display tube documented for high-voltage direct-view operation, using magnetic deflection and manufacturer-specified beam focusing and control arrangements appropriate to type 17AVP4A.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: 12L
Socket code: DUODECAL5
Base pins: 6
Nominal heater: 6.3 V / 600 mA

Description

17AVP4A is a direct-view cathode-ray picture tube designed for television service. It uses electrostatic focusing and magnetic deflection, with a P-4 white picture screen. The datasheet publishes high-voltage anode operation, grid-electrode ratings, heater-cathode limits, deflection data, and operating characteristics. It uses ion-trap system.

Socket description

Small-shell Duodecal 5-contact CRT base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 12L
Socket code: DUODECAL5
Base pins: 6
Nominal heater voltage: 6.3 V
Nominal heater current: 600 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

12L - 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: 17600 V
Max screen voltage: 550 V

CRT-specific anode, focus, deflection and optical data retained as parameters rather than forced into ordinary plate/screen fields.

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 01

1950 Sylvania

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristic

Heater Voltage
6.3 V
Heater Current
600 mA
Cathode To All Other Electrodes Capacitance
5 pF
Approximate

Other

Maximum Anode Voltage
17600 V
Maximum Grid2 Voltage
550 V
Typical Anode Voltage
14000 V

Data set 02

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Other

Maximum Anode Voltage
16000 V
Typical Anode Voltage
12000 V
Maximum Grid2 Voltage
500 V
Typical Grid2 Voltage
300 V

Characteristic

FocusingMethod
LowVoltageElectrostatic
DeflectingMethod
Magnetic
DiagonalDeflectionAngleApproximate
90 degree
PhosphorNumber
4
FluorescentColor
White
Persistence
Medium

Data set 03

1966 Tung Sol Electronic Tubes 4 of 4

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Other

Maximum DC grid 2 voltage
500 V
Maximum DC grid 4 voltage
-500 to 1000 V
Maximum grid 1 negative-bias voltage
125 V
NegativeBias
Maximum grid 1 positive-bias voltage
0 V
PositiveBias
Maximum grid 1 positive-peak voltage
2 V
PositivePeak
Peak heater-cathode voltage
410 V
HeaterNegativeWarmup
Peak heater-cathode voltage
180 V
HeaterNegativeAfterWarmup
Peak heater-cathode voltage
180 V
HeaterPositive
DC anode voltage
12000 V
TypicalOperation
DC grid 4 voltage
-48 to 264 V
TypicalOperation
DC grid 2 voltage
300 V
TypicalOperation
DC grid 1 voltage
-33 to -77 V
TypicalOperation
Ion trap current
30 mA
Approximate

Characteristic

Horizontal deflection angle
85 degrees
Approximate
Vertical deflection angle
68 degrees
Approximate
Diagonal deflection angle
90 degrees
Approximate

Capacitance

Cathode to all other electrodes capacitance
5 pF
Approximate
Grid 1 to all other electrodes capacitance
6 pF
Approximate
External conductive coating to anode capacitance
1500 pF
Maximum
External conductive coating to anode capacitance
750 pF
Minimum

Data set 04

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Other

AnodeVoltageMaximum
16000 V
AnodeVoltageTypical
14000 V
Grid2VoltageMaximum
500 V