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ECC82-TK Vacuum Tube, Matched Pair, Balanced Triodes

Tubes

Dual-triode vacuum tube set, matched pair, balanced triodes, medium gain, low noise, gold-plated pins

$266.00 CAD
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Description

This matched pair of ECC82-TK dual-triode vacuum tubes with balanced triodes is designed for hi-fi systems, phono stages, headphone amplifiers, and instrument amplifiers. Its medium-gain, low-noise characteristics suit line amplification, driver stages, and phase-inverter circuits while delivering bright tonality, flat mids, focused lows, and wide dynamics.

The balanced sections within each tube and matching across the pair support consistent performance in compatible two-tube equipment. Each tube is cryogenically treated, measured for gain, transconductance, noise, and microphonics, then burned in and retested for stability. Gold-plated pins support reliable signal transfer.

Features

Matched Pair
Two performance-matched tubes support consistent operation in compatible audio equipment.

Balanced Triodes
The two triode sections within each tube are balanced for dependable, low-noise performance.

Medium-Gain Output
Suitable for circuits requiring clean headroom and controlled gain.

Low-Noise Performance
Well suited to sensitive applications such as phono stages, headphone amplifiers, and instrument preamplifiers.

Versatile Circuit Applications
Suitable for line amplification, driver stages, and phase-inverter duties in compatible equipment.

Selected and Tested
Each tube is measured for gain, transconductance, noise, and microphon Ambient, then burned in and retested for stability.

Gold-Plated Pins
Gold-plated pins support dependable electrical contact and signal integrity.

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Specifications

General Specifications
Tube Type: Balanced R.F. dual triode
Set Configuration: Matched pair
Equivalent Tube Type: 12AU7
Base: Noval
Pin Count: 9

Heater Requirements
Heater Voltage: 6.3 V
Heater Current: 300 mA

Maximum Ratings
Plate Voltage: 300 V
Grid Voltage: -50 V
Cathode-to-Heater Voltage: 180 V
Cathode Current: 20 mA
Plate Trap Dissipation: 2.75 W
Cathode-to-Heater Resistance: 150 kΩ
Grid Resistor: 1 MΩ

Typical Characteristics
Plate Voltage: 250 V
Grid Voltage: -8.5 V
Plate Current: 10.5 mA
Transconductance: 2.2 mA/V
Internal Plate Resistance: 7.7 kΩ
Amplification Factor: 17 µ

Interelectrode Capacitance
Grid-to-Cathode and Heater: 1.9 pF
Plate-to-Cathode and Heater: 1.9 pF
Grid-to-Plate: 1.63 pF

Physical Specifications
Height Excluding Pins: 49.2 mm
Height Including Pins: 55.6 mm
Diameter: 22 mm
Weight per Tube: 8.5 g

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