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Voltage - Dual Triode (similar) ·Triode-Triode

CV2212

Medium-mu miniature double triode, equivalent to 13D3, intended for DC and low-noise amplifier service in professional electronic equipment.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
-
Socket code
-
Base pins
-
Nominal heater
12.6 V / 300 mA

Description

The CV2212 is a medium-mu miniature double triode equivalent to BRIMAR 13D3/CV2212, intended for DC and low-noise amplifier service.

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
12.6 V
Nominal heater current
300 mA
Parallel heater voltage
6.3 V
Parallel heater current
600 mA
Series capable
Yes

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

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
14000 Ω
Transconductance
0.0023 S
Amplification factor
32
Max plate voltage
300 V
Max plate dissipation
5 W

Representative of two identical triode sections.

Section 2

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
14000 Ω
Transconductance
0.0023 S
Amplification factor
32
Max plate voltage
300 V
Max plate dissipation
5 W

Second physical triode restored.

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

1958 Brimar Radio Valve No 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Anode Voltage

    250 V

    Each section

  • Anode Current

    6 mA

    Each section

  • Grid Voltage

    -4.6 V

    Each section

  • Grid-to-Anode Capacitance

    2.1 pF

    Each section

  • Anode-to-Anode Capacitance

    1 pF