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Rectifier - Full Wave ·Rectifier-Rectifier

CY2

Indirectly heated full-wave rectifier for AC/DC equipment, electrically equivalent in operating characteristics to UR3C apart from mechanical details. Its series-heater construction supports approximately 120 mA DC output.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
-
Socket code
P8A
Base pins
8
Nominal heater
30 V / 200 mA

Description

Indirectly heated AC/DC rectifier using a 30 V, 200 mA heater. Its operating data and characteristic curve are specified as identical to type UR3C except for base connections and overall length.

Socket description

European 8-pin side-contact base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
P8A
Base pins
8
Nominal heater voltage
30 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

2 physical sections, each with unique specifications.

Section 1

Rectifier

X-ray radiationInterelectrode capacitances
Max plate voltage
250 V
Rectifier nominal output current
60 mA
Rectifier max heater-cathode voltage
350 V

Dual rectifier system usable as voltage doubler, full-wave rectifier, or high-current half-wave rectifier; identical rectifying paths represented once.

Section 2

Rectifier

X-ray radiationInterelectrode capacitances
Rectifier nominal output current
60 mA
Rectifier max heater-cathode voltage
350 V

Second physical rectifier section; electrical properties populated from applicable published ratings.

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 Philips Miniwatt Vacuum Tube Catalog

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Maximum AC no-load plate voltage

    250 V

    HalfWave; OneAnode

  • Maximum DC output current

    120 mA

    HalfWave; OneAnode

  • Maximum AC no-load plate voltage

    127 V

    FullWaveEquivalent; TwoAnodes

  • Maximum DC output current

    60 mA

    FullWaveEquivalent; TwoAnodes

SECTION 2

Rectifier

Other

  • Maximum AC no-load plate voltage

    250 V

    HalfWave; OneAnode

  • Maximum DC output current

    120 mA

    HalfWave; OneAnode

  • Maximum AC no-load plate voltage

    127 V

    FullWaveEquivalent; TwoAnodes

  • Maximum DC output current

    60 mA

    FullWaveEquivalent; TwoAnodes

Data set 02

195X Tunsgram

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Voltage-doubler maximum AC voltage

    127 V

    2 x 127 V

  • Voltage-doubler maximum DC current

    60 mA

  • Full-wave maximum AC voltage

    250 V

  • Full-wave maximum DC current

    120 mA

  • Half-wave maximum AC voltage

    150 V

  • Half-wave maximum DC current

    120 mA

  • Maximum heater-cathode voltage

    350 V

SECTION 2

Rectifier

Other

  • Voltage-doubler maximum AC voltage

    127 V

    2 x 127 V

  • Voltage-doubler maximum DC current

    60 mA

  • Full-wave maximum AC voltage

    250 V

  • Full-wave maximum DC current

    120 mA

  • Half-wave maximum AC voltage

    150 V

  • Half-wave maximum DC current

    120 mA

  • Maximum heater-cathode voltage

    350 V

Data set 03

1963 Mullard

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Electrical equivalence reference

    UR3C

    Except base connections and overall length

SECTION 2

Rectifier

Other

  • Electrical equivalence reference

    UR3C

    Except base connections and overall length

Data set 04

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Chzuffage: indirect par C.A. ou C.C.; Vi

    30 V

    Published datasheet specification

  • zlimentation en série If

    200 mA

    Published datasheet specification

  • VEYR

    450 V

    Published datasheet specification

  • Vfk

    450 v

    Published datasheet specification

  • mex

    50 V

    Published datasheet specification

  • Published specification

    0

    Published datasheet specification

  • max,

    70 V

    Published datasheet specification

  • Published specification

    6 pF

    Published datasheet specification

  • max

    27 V

    Published datasheet specification

  • Published specification

    6 uF

    Published datasheet specification

SECTION 2

Rectifier

Other

  • Chzuffage: indirect par C.A. ou C.C.; Vi

    30 V

    Published datasheet specification

  • zlimentation en série If

    200 mA

    Published datasheet specification

  • VEYR

    450 V

    Published datasheet specification

  • Vfk

    450 v

    Published datasheet specification

  • mex

    50 V

    Published datasheet specification

  • Published specification

    0

    Published datasheet specification

  • max,

    70 V

    Published datasheet specification

  • Published specification

    6 pF

    Published datasheet specification

  • max

    27 V

    Published datasheet specification

  • Published specification

    6 uF

    Published datasheet specification