Telefunken EL34-TK Black Diamond Series Vacuum Tube

Telefunken EL34-TK Black Diamond Series Vacuum Tube

Telefunken EL34-TK Black Diamond Series Vacuum Tube

Telefunken EL34-TK Black Diamond Series Vacuum Tube


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Expected availability: 7-14 business days

Product Highlights

  • Pentode Output Tube
  • Ideal for Guitar Amps & Hi-Fi Gear
  • High Output
  • Smooth Midrange & Tight Bass
  • Enhanced Grid Voltage Handling
  • Characteristic "British" Tone
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Configuration: Single Tube

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Single Tube

This item is noncancelable and nonreturnable.

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Telefunken EL34-TK overview

  • 1Description

The Telefunken EL34-TK Black Diamond Series Vacuum Tube is ideal for use in guitar amplifiers and hi-fi equipment in homes, studios, and live stage applications. For personal enjoyment or commercial recording, it grants a focused low-frequency response and smooth midrange frequencies. Supporting higher plate voltages than a 6L6 and higher grid voltages than a traditional EL34, this high-output pentode tube delivers a characteristic "British" tone.

Designed to handle a slightly higher grid voltage than a traditional EL34
Great for guitar amplifiers and hi-fi equipment
Smaller in diameter and taller than a 6L6, and capable of a higher plate voltage
Commonly used in pairs in a Class-AB1 push-pull configuration
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: 899051002510
Table of Contents
  • 1Description

Telefunken EL34-TK specs

Type A.F. output pentode
Base Octal
Number of Pins 7
Heater Requirements
Voltage 6.3 V
Current 1.5 A
Direct Interelectrode Capacitances
Capacitance Grid #1 to All Except Plate: 15.5 pF
Plate to All Except Grid #1: 10 pF
Plate to Grid #1: 1.5 pF
Maximum Ratings
Voltage Plate Voltage (in cold conditions): 2000 V
Plate Voltage: 800 V
Grid #2 Voltage (in cold conditions): 800 V
Grid #2 Voltage: 450 V
Cathode to Heater Voltage: 100 V
Current Cathode Current: 150 mA
Dissipation Plate Dissipation: 25 W
Grid #2 Dissipation: 8 W
Resistance Cathode to Heater Resistance: 20 kOhms
Typical Operation and Characteristicssufcyqva
Voltage Plate Voltage: 250 V
Grid #3 Voltage: 0 V
Grid #2 Voltage: 265 V
Grid #1 Voltage: -10 to -13.5 V
Current Plate Current: 100 mA
Grid #2 Current: 14.9 mA/V
Plate Current at Cutoff: <7 mA
Transconductance 11 mA/V
Resistance Internal Plate Resistance: 15 kOhms
Amplification Amplification Factor: 11
Physical Characteristics
Dimensions (H x Diam.) 3.9 x 1.3" / 98.0 x 33.3 mm (excluding pins)
4.4 x 1.3" / 112.0 x 33.3 mm (including pins)
Weight 1.6 oz / 45.4 g
Packaging Info
Package Weight 0.15 lb
Box Dimensions (LxWxH) 5.2 x 1.8 x 1.6"

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