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Diode (NOT rectifier) ·Diode-Diode

CB2

European duodiode documented with published operating characteristics; available source does not establish a narrower functional application.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
-
Socket code
P5
Base pins
5
Nominal heater
13 V / 200 mA

Description

CB2 is listed in the supplied valve table as a duodiode. Published operating and characteristic values were transcribed from its target row.

Socket description

Europe side-contact small P5

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
P5
Base pins
5
Nominal heater voltage
13 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

Diode

X-ray radiationInterelectrode capacitances
Max plate voltage
200 V
Max cathode current
0.8 mA
Rectifier peak inverse voltage
200 V
Rectifier nominal output current
0.8 mA
Rectifier max heater-cathode voltage
125 V

Two electrically identical diode sections share a cathode; represented once under repeated-identical-section compression.

Section 2

Diode

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Physical second diode section added during approved section-structure reconciliation.

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

Diode

Characteristic

  • Heater/filament voltage

    13 V

    Published heater/filament rating

  • Heater/filament current

    200 mA

    Published heater/filament rating

Data set 02

195X Tunsgram

Published operating points and test conditions from this source.

SECTION 1

Diode

Other

  • Maximum signal voltage

    200 V

    Per diode, peak

  • Maximum diode current

    0.8 mA

    Per anode

  • Maximum heater-cathode voltage

    125 V