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Specialized - Cathode Ray ·CathodeRay

5ALP1

Five-inch cathode-ray instrument display tube documented by manufacturer data for type 5ALP1, intended for waveform or measurement presentation with purpose-specific phosphor and beam-control characteristics.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
B9A
Base pins
9
Nominal heater
6.3 V / 200 mA

Description

Five-inch daylight-viewing cathode-ray tube with magnetic focus and deflection.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B9A
Base pins
9
Nominal heater voltage
6.3 V
Nominal heater current
200 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

No fixed ratings are recorded for this section.

Values promoted only where clearly published for this section in the approved source.

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

1938 National Union

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristic

  • and produce beam currents of

    0.5 ma

    Published source value; see source line context.

  • heater current.c.eistovresmeaanosaorsnsnns [

    200 ma

    Published source value; see source line context.

Other

  • consumption {

    1.26 watts

    Published source value; see source line context.

  • Published value

    7.5 inches

    Published source value; see source line context.

  • lieater voltage (ac or dc)eaveveanans Cheeietebannn

    6.3 v

    Published source value; see source line context.

  • Anode voltage..iv-va.. Chee e ea s e eren

    10 Kv

    Published source value; see source line context.

  • Grid voltage (positive).ceiueininin i ianaee

    1 V

    Published source value; see source line context.

  • Grid resistor...cerrennennanonnans IR [N

    1.5 meg

    Published source value; see source line context.

  • Heater valtage............ besiaaaa i ahes e

    6.3 v

    Published source value; see source line context.

  • Grid cutoff voltage....... Cereer s

    -50 v

    Published source value; see source line context.

  • Anode voltage.............. Sra e e

    8 Kv

    Published source value; see source line context.

  • Published value

    7.9 in

    Published source value; see source line context.

  • Useful screen diameter.............. Ceerrriesaane

    428 in

    Published source value; see source line context.

  • Maximum bulb diameter....,...ccveinanns Ceeaeeaas

    5 in

    Published source value; see source line context.

  • Tube neck diameter..... e aera ienaen chae

    87 in

    Published source value; see source line context.