5V3A

Glass-octal full-wave rectifier for color and black-and-white television receivers and other high-current supplies. Its 5 V filament supports approximately 350 mA DC output and substantial peak current.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: -
Socket code: IO
Base pins: 8
Nominal heater: 5 V / 3 A

Description

Glass octal type used in power supplies of color and black-and-white television receivers and other equip- ment having high dc requirements. Outlines section, 19E; requires octal socket. Vertical mounting is pre- ferred, but horizontal mounting is permissible if pins 2 and 4 are in vertical plane. It is especially important that this tube, like other power-handling tubes, be ade- quately ventilated. For discussion of Rating Chart, refer to Interpretation of Tube Data.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: IO
Base pins: 8
Nominal heater voltage: 5 V
Nominal heater current: 3 A
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

2 physical sections, each with unique specifications.

Section 1

Rectifier

X-ray radiationInterelectrode capacitances

Rectifier peak inverse voltage: 1550 V
Rectifier nominal output current: 415 mA
Rectifier peak forward current: 1.4 A
Rectifier forward voltage drop: 42 V

Representative row for identical repeated sections.

Section 2

Rectifier

X-ray radiationInterelectrode capacitances

Rectifier peak inverse voltage: 1550 V
Rectifier nominal output current: 415 mA
Rectifier peak forward current: 1.4 A
Rectifier forward voltage drop: 42 V

Second physical rectifier section; electrical properties populated from corresponding identical section.

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

1966 Tung Sol Electronic Tubes 1 of 4

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

Maximum peak inverse plate voltage
1550 V
Maximum RMS AC plate supply voltage per plate
550 V RMS
Maximum steady-state peak plate current per plate
1.4 A
Maximum transient peak plate current per plate
4.6 A
Maximum DC output current
415 mA
CapacitorInputFilter; 470V AC
AC plate supply voltage per plate
300 V RMS
CapacitorInputFilter
Filter input capacitance
40 uF
CapacitorInputFilter
DC output current
380 mA
CapacitorInputFilter; 300V AC
DC output voltage
300 V
CapacitorInputFilter; 300V AC
AC plate supply voltage per plate
425 V RMS
CapacitorInputFilter
DC output current
350 mA
CapacitorInputFilter; 425V AC
DC output voltage
440 V
CapacitorInputFilter; 425V AC
Filter input choke
10 H
ChokeInputFilter
DC output current
350 mA
ChokeInputFilter
DC output voltage
390 V
ChokeInputFilter

Characteristic

Tube voltage drop at 350 mA per plate
42 V

SECTION 2

Rectifier

Other

Maximum peak inverse plate voltage
1550 V
Maximum RMS AC plate supply voltage per plate
550 V RMS
Maximum steady-state peak plate current per plate
1.4 A

Data set 02

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristic

Peak Inverse Plate Voltage
1660 volts
Published value from supplied target entry
Peak Plate Current (Per Plate)
1.4 amperes
Published value from supplied target entry
Hot-Switching Transient Plate Current (Per Plate)
6.6 amperes
Published value from supplied target entry
AC Plate-Supply Voltage (Per Plate, rms, without load)
660 volts
Published value from supplied target entry
Average Output Current (Per Plate)
415 mA
Published value from supplied target entry
AC Plate-to-Plate Supply Voltage (rms)
1000 volts
Published value from supplied target entry
Average Output Current
360 mA
Published value from supplied target entry
Tube Voltage Drop for plate current of
42 mA
Published value from supplied target entry

Capacitance

* With capacitor-input filter for ac plate-supply volts (rms, per plate, without load) =
470 volts
Published value from supplied target entry
Filter-Input Capacitor"
40
Published value from supplied target entry
When capacitor values greater than
40
Published value from supplied target entry