Telefunken E88CC-TK Pre Amp Tubes Offering Precise Imaging Unmatched Dynamics

TELEFUNKEN Elektroakustik E88CC-TK Pre Amp Tubes Offering Precise Imaging Unmatched Dynamics

The newly produced TELEFUNKEN E88CC-TK gold pin tube 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.

Technical Specs

Type
R.F.Dual Triode
Base
Noval
Number of Pins
9-pin

-Indirect by A.C. or D.C.
Heater Voltage
6.3 V
Heater Current
365 mA

Grid to Cathode and Heater
301 pF
Plate to Cathode and Heater
0.18 pF
Grid to Plate
1.4 pF

Plate Voltage (in cold condition)
550 V
Plate Voltage (when Plate Current = 0 mA)
400 V
Plate Dissipation
1.5 W
Cathode Current
20 mA
Grid Dissipation
30 mW
Cathode Current
20 mA
Grid Voltage
-100 V
Grid Resistor
1 M?
Cathode Positive to Heater Voltage
120 V
Cathode Negative to Heater Voltage
60 V
Cathode to Heater Resistance
20 k

PlateVoltage
90 V
Grid Voltafe
-1.3V
Plate Current
15 mA
Transconductance
12.5 mA/V
Internal Plate Resistance
26 k
Amplification Factor
33