Telefunken EL34-TK Black Diamond Series Vacuum Tubes (Matched Pair)

BH #TEMPEL34TK • MFR #EL34-TK VACUUM TUBE MATCHED PAIR
Telefunken EL34-TK Black Diamond Series Vacuum Tubes (Matched Pair)
Key Features
  • Pentode Output Tubes
  • Ideal for Guitar Amps & Hi-Fi Gear
  • High Output
  • Smooth Midrange & Tight Bass
This matched pair of Telefunken EL34-TK Black Diamond Series Vacuum Tubes is ideal for use in guitar amplifiers and hi-fi equipment in homes, studios, and live stage applications. For personal enjoyment or commercial recording, they grant a focused low-frequency response and smooth midrange frequencies. Supporting higher plate voltages than a 6L6 and higher grid voltages than a traditional EL34, these high-output pentode tubes deliver a characteristic "British" tone.
Special Order
Expected availability: 2-4 weeks
On Display in Store
$79.00

Important Notice

  • This item is noncancelable and nonreturnable.
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Telefunken EL34-TK VACUUM TUBE MATCHED PAIR Overview

This matched pair of Telefunken EL34-TK Black Diamond Series Vacuum Tubes is ideal for use in guitar amplifiers and hi-fi equipment in homes, studios, and live stage applications. For personal enjoyment or commercial recording, they grant a focused low-frequency response and smooth midrange frequencies. Supporting higher plate voltages than a 6L6 and higher grid voltages than a traditional EL34, these high-output pentode tubes deliver 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: 858513005902

Telefunken EL34-TK VACUUM TUBE MATCHED PAIR Specs

Mechanical
TypeA.F. output pentode
BaseOctal
Number of Pins7
Heater Requirements
Voltage6.3 V
Current1.5 A
Direct Interelectrode Capacitances
CapacitanceGrid #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
VoltagePlate 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
CurrentCathode Current: 150 mA
DissipationPlate Dissipation: 25 W
Grid #2 Dissipation: 8 W
ResistanceCathode to Heater Resistance: 20 kOhms
Typical Operation and Characteristics
VoltagePlate Voltage: 250 V
Grid #3 Voltage: 0 V
Grid #2 Voltage: 265 V
Grid #1 Voltage: -10 to -13.5 V
CurrentPlate Current: 100 mA
Grid #2 Current: 14.9 mA/V
Plate Current at Cutoff: <7 mA
Transconductance11 mA/V
ResistanceInternal Plate Resistance: 15 kOhms
AmplificationAmplification Factor: 11 µ
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)
Weight1.6 oz / 45.4 g
Packaging Info
Package Weight0.255 lb
Box Dimensions (LxWxH)5.2 x 3.45 x 1.9"
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