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16AKP7

Sixteen-inch P7 persistent-screen cathode-ray display tube operating at high anode voltage. Westinghouse documentation indicates approximately 12–14 kV operation and yellow phosphorescent afterglow, supporting prolonged visibility of displayed traces.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: -

Description

Westinghousé RELIATRON® TUBES 16AKP7 Septem ber 2, 1957 from JETEC release #2011, Sept. 16, 1957 RADAR DISPLAY TUBE TYPE 16AKP7 The 16AKP7 is an electrostatic focus, magnetic deflection round gless radar display tube. The screen is alumin- ized to increase brightness and uses a P7 phosphor for improved viewing characteristics. The 16AKP7 features a straight no-ion-trap gun which produces a very narrow line which gives the tube high resclution capabilities. ELECTRICAL: MAXIMUM RATINGS: Cathede . . . ... e h e et e Coated Unipotentiol Design Center Valuves Heater: Anode Voltage .. ... ......... 14000 max. Yaolts Voltage . . . o v v i v i e i ans 6.3 Velts Grid 4 {Focusing Electrode)} Yoltaga 1000 max. Yolts Curtent o v vvasnvennn. P 0.60 Ampers Grid2 Veltage. . . . ........... 450 max. Yolts Direct Interalactrode Capacitances: Grid 1 Volts: Grid 1 to al! other Electrodes . . . 9.0 uuf Negotive Bias Valve. . . .. .. ... 140 max. Volis Grid 2 to ol!l other Electrodes. . . 7.0 uuf Positive

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: -
Base pins: -
Nominal heater voltage: -
Nominal heater current: -
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

No fixed ratings are recorded for this section.

Source-derived physical section; applicable promoted ratings are populated from the printed sheet.

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

1947 Westinghouse

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Other

Heater: Anode Voltage
14000 V
Heater: Anode Voltage .. ... ......... 14000 max. Yaolts
Voltage . . . o v v i v i e i ans
1000 V
Voltage . . . o v v i v i e i ans 6.3 Velts Grid 4 {Focusing Electrode)} Yoltaga 1000 max. Yolts
Curtent o v vvasnvennn. P
450 Ampers
Curtent o v vvasnvennn. P 0.60 Ampers Grid2 Veltage. . . . ........... 450 max. Yolts
Grid
140 pF
Grid 1 to al! other Electrodes . . . 9.0 uuf Negotive Bias Valve. . . .. .. ... 140 max. Volis
Grid
0 pF
Grid 2 to ol!l other Electrodes. . . 7.0 uuf Positive Bias Valve. . . .. .... 0 max. Volts
Cothode to all other Electrades
0 V
Cothode to all other Electrades . 7.0 vuf Positive Peak Yalue. . . .. ..... 0 mox. Volts
Phosphorescence., . . . - ... ... Yeollow to exceed
410 s
Phosphorescence., . . . - ... ... Yeollow to exceed 15 Seconds. .. . ..... 410 max. Yolts
Grid
1.5 Mohm
Grid 1 Circuit Resistance .. ... .. 1.5 max. Megohms
Glass . . ... o i e Fitter Anode Voltage. . . . ... Ve e
12000 V
Glass . . ... o i e Fitter Anode Voltage. . . . ... Ve e 12000 Yolts
Tronsmission
250 V
Tronsmission . . . .. .. ... ... 76% Grid 4 Voltaged . ... ......... -300 10 +250 Volts
Bulb Diameter. . « .. v
300 V
Bulb Diameter. . « .. v 0y, 15-7/8" + 1/8"" Grid 2 Voltage . .. ... ........ 300 Yolts
Overall Length
75 V
Overall Length . . ... ... ..... 22-1/16"" + 3/8" Grid 1 Voltage® . . . ... ...... =35 to <75 Volts
Anode Terminal
1 V
Anode Terminal . . .. ... ...... 31210 ¢ With the combined grid 1 bies voltage and video-sign al voltage
Base. ...+ iv i iaranaioan B7
100 A
Base. ...+ iv i iaranaioan B7-51 adjusted 1o give an anode current of 100 micreamp eres on a

Characteristic

Direct Interalactrode Capacitances: Grid
1 V
Direct Interalactrode Capacitances: Grid 1 Volts:
MECHANICAL: Grid
0.1 Mohm
MECHANICAL: Grid 2 Circvit Resistance .. ..., .. 0.1 min, Megohms
Any Grid
0.1 Mohm
... .. Any Grid 4 Circuit Resistance .. .. ... 0.1 min. Megohms