Telefunken E88CC-TK/6922 Black Diamond Series Vacuum Tube

BH #TEE88CCTK • MFR #E88CC-TK (6922) VACUUM TUBE
Telefunken
Telefunken E88CC-TK/6922 Black Diamond Series Vacuum Tube
Key Features
  • Dual Triode Vacuum Tube
  • Ideal for Mic Preamps & Phono Stages
  • Medium Gain & Low Noise
  • Clean Headroom, Transparent Tone
The Telefunken E88CC-TK/6922 Black Diamond Series Vacuum Tube is ideal for use in microphone preamplifiers and phono stages in homes, studios, and live stage applications. For personal enjoyment or commercial recording, it grants accurate imaging and versatile, expressive dynamics. Offering medium gain and low noise, this dual triode tube delivers clean headroom and transparent tone critical to achieving sonically tight input stages. The E88CC-TK/6922 features gold-plated pins for enhanced signal integrity.
Back-Ordered
$54.00
Deesh P., B&H Pro Audio Expert

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Telefunken E88CC-TK Overview

The Telefunken E88CC-TK/6922 Black Diamond Series Vacuum Tube is ideal for use in microphone preamplifiers and phono stages in homes, studios, and live stage applications. For personal enjoyment or commercial recording, it grants accurate imaging and versatile, expressive dynamics. Offering medium gain and low noise, this dual triode tube delivers clean headroom and transparent tone critical to achieving sonically tight input stages. The E88CC-TK/6922 features gold-plated pins for enhanced signal integrity.

Newly manufactured and cryogenically treated to resurrect the transparent tone and harmonic impact of historical Siemens and Telefunken tubes
Great for microphone preamplifiers, phono stages, and sonically tight audio input sections
Also known as the 6922, the E88CC was originally targeted for test equipment and radar, but now serves audiophiles, musicians, and audio engineers
Designed to offer precise imaging, significant dynamics, and a full-bodied soundstage
Medium gain and low noise characteristics
Dual-triode like the 12AX7 tube, but with a different pin configuration (not a direct plug-in replacement)
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: 899051002503

Telefunken E88CC-TK Specs

Mechanical
TypeR.F. dual triode
BaseNoval
Number of Pins9
Heater Requirements
Voltage6.3 V
Current365 mA
Direct Interelectrode Capacitances
CapacitanceGrid to Cathode and Heater: 3.1 pF
Plate to Cathode and Heater: 0.18 pF
Grid to Plate: 1.4 pF
Maximum Ratings
VoltagePlate Voltage: 550 V in cold conditions
Plate Voltage: 400 V at 0 mA plate current
Plate Voltage: 220 V
Plate Voltage: 250 V at <0.8 W plate dissipation
Grid Voltage: -100 V
Cathode Positive to Heater Negative Voltage: 120 V
Cathode Negative to Heater Positive Voltage: 60 V
CurrentCathode Current: 20 mA
DissipationPlate Dissipation: 1.5 W
Grid Dissipation: 30 mW
ResistanceCathode to Heater Resistance: 20 kOhms
Typical Operation and Characteristics
VoltagePlate Voltage: 90 V
Grid Voltage: -1.3 V
CurrentPlate Current: 15 mA
Transconductance12.5 mA/V
ResistanceInternal Plate Resistance: 2.6 kOhms
AmplificationAmplification Factor: 33 µ
Physical Characteristics
Dimensions (H x Diam.)1.9 x 0.9" / 49.2 x 22.0 mm (excluding pins)
2.2 x 0.9" / 55.6 x 22.0 mm (including pins)
Weight0.3 oz / 8.5 g
Packaging Info
Package Weight0.04 lb
Box Dimensions (LxWxH)3.1 x 1 x 1"
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