Telefunken ECC82-TK/12AU7 Black Diamond Series Vacuum Tube

Telefunken ECC82-TK/12AU7 Black Diamond Series Vacuum Tube

Telefunken ECC82-TK/12AU7 Black Diamond Series Vacuum Tube

Telefunken ECC82-TK/12AU7 Black Diamond Series Vacuum Tube


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Expected availability: 7-14 business days

Product Highlights

  • Dual Triode Vacuum Tube
  • Low-Gain Replacement for ECC81/12AX7
  • Ideal for Hi-Fi Gear & Instrument Amps
  • Medium Gain & Low Noise
  • Enhanced Brightness & Dynamics
  • Flat Midrange & Tight Low Frequencies
  • Gold-Plated Pins & Internal Grid
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Configuration: Single Tube

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Telefunken ECC82-TK overview

  • 1Description

The Telefunken ECC82-TK/12AU7 Black Diamond Series Vacuum Tube is ideal for use in hi-fi equipment and instrument amplifiers in homes, studios, and live stage applications. Offering medium gain and low noise, this dual triode tube can also be used to replace ECC81/12AX7 tubes when lower gain is desired. The ECC82-TK/12AU7 is characterized by its brightness, flat midrange, focused low frequencies, and versatile dynamics. It features gold-plated pins and a gold-plated internal grid for enhanced signal integrity.

Newly manufactured and cryogenically treated rendition of the classic ECC82 dual triode vacuum tube, commonly known by the American designation 12AU7
Great for hi-fi equipment, instrument amplifiers, and as a low-noise line amp, driver, and phase inverter in push-pull amplifier circuits
Suitable replacement for an ECC81/12AX7 when lower gain is desired
Medium gain and low noise characteristics
Bright tone with a flat midrange and tight low end
Accurate and focused image with wide dynamics
Each tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics
Tubes are selected by hand, rigorously tested, subjected to an extended burn-in period for stability, and re-measured before final packing
UPC: 858513005001
Table of Contents
  • 1Description

Telefunken ECC82-TK specs

Type R.F. dual triode
Base Noval
Number of Pins 9
Heater Requirements
Voltage Parallel Configuration: 6.3 V
Series Configuration: 12.6 V
Current Parallel Configuration: 300 mA
Series Configuration: 150 mA
Direct Interelectrode Capacitances
Capacitance Grid to Cathode and Heater: 1.9 pF
Plate to Cathode and Heater: 1.9 pF
Grid to Plate: 1.63 pF
Maximum Ratings
Voltage Plate Voltage: 300 V
Grid Voltage: -50 V
Cathode to Heater Voltage: 180 V
Current Cathode Current: 20 mA
Dissipation Plate Dissipation: 2.75 W
Resistance Grid Resistor (self bias): 1 MOhm Cathode to Heater Resistance: 150 kOhms
Typical Operation and Characteristicsadeuzaff
Voltage Plate Voltage: 250 V
Grid Voltage: -8.5 V
Current Plate Current: 10.5 mA
Transconductance 2.2 mA/V
Resistance Internal Plate Resistance: 7.7 kOhms (approximate)
Amplification Amplification Factor: 17
Physical Characteristicsadeuzaff
Dimensions (H x Diam.) 1.9 x 0.9" / 49 x 22 mm (excluding pins)
2.2 x 0.9" / 56 x 22 mm (including pins)
Weight 0.4 oz / 11.3 g
Packaging Info
Package Weight 0.04 lb
Box Dimensions (LxWxH) 3.1 x 1.1 x 1.0"

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