Telefunken Black Diamond Series E88CC-TK Pre Amp Vacuum Tubes
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Telefunken Black Diamond Series E88CC-TK Pre Amp Vacuum Tubes

SKU: TFE88CCTK
(2)

This item is no longer available.

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Reviews about this item

Review Summary

2018-07-10T15:32:54

Rated 5 out of 5

EXCELLENT TUBES

ITEMS WERE AS MENTIONED AND DELIVERY WAS SOMEWHAT ON TIME

Joseph S.

2016-12-28T10:09:08

Rated 5 out of 5

I would definitely recommend this product

I would definitely recommend this product. I initially installed but did not listen to results until the pair was running on my phono pre-amp for about 35 hours. With the burn-in period complete i listened to my copy of 2001 Space Odyssey soundtrack. sound-stage was wonderful and great on the ears! How it compares to other high end tubes, I can't tell you but it is a vast improvement on the original Electro Harmonix 6922EH my phono pre-amp came with.

Peter P.

Telefunken E88CC-TK Specifications

  • Type

    R.F. Dual Triode

  • Base

    Noval

  • Number of Pins

    9-Pin

  • Heater Voltage

    6.3V

  • Heater Current

    365mA

  • Grid to Cathode and Heater

    3.1pF

  • Plate to Cathode and Heater

    0.18pF

  • Grid to Plate

    1.4pF

  • Plate Voltage (in cold condition)

    550V

  • Plate Voltage (Plate Current = 0mA)

    400V

  • Maximum Ratings: Plate Voltage

    220V

  • Plate Voltage (Plate Dissipation <0.8W)

    250V

  • Maximum Ratings: Plate Dissipation

    1.5W

  • Maximum Ratings: Grid Dissipation

    30mW

  • Maximum Ratings: Cathode Current

    20mA

  • Maximum Ratings: Grid Voltage

    -100V

  • Grid Resistor(automatic bias)

    1MOhms

  • Cathode Positive-Heater Negative Voltage

    120V

  • Cathode Negative-Heater Positive Voltage

    60V

  • Cathode to Heater Resistance

    20kOhms

  • Plate Voltage

    90V

  • Grid Voltage

    -1.3V

  • Plate Current

    15mA

  • Transconductance

    12.5mA/V

  • Internal Plate Resistance (approx.)

    2.6kOhms

  • Amplification Factor

    33

About Telefunken E88CC-TK

The Telefunken Black Diamond Series E88CC-TK Pre Amp Vacuum Tubes resurrects the transparent tone and harmonic impact of historical Siemens and TELEFUNKEN tubes. Whether it is installed in a phono stage or microphone preamplifier, this E88CC-TK will breathe new life into all audio equipment offering precise imaging, unmatched dynamics and a large full-bodied soundstage. Also known as the 6922, the E88CC was originally targeted for test equipment and radar. The E88CC has medium gain, low noise and is a favorite for tight sounding audio input stages. There are some that will argue that the E88CC is the best sounding input tube ever designed. The E88CC is a dual triode tube like the 12Ax7, but has a different pin configuration making it not a direct plug-in replacement. It is most commonly employed in amplifier designs where more clean headroom is desired. The medium gain characteristic of the tube and the low-noise design are part of why this tube sounds as good as it does in microphone preamplifier and phono preamplifier applications.

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