The Telefunken ECC83-TK/12AX7 Black Diamond Series Vacuum Tube is ideal for use in input and inter-stage audio amplifiers in homes, studios, and live stage applications. From stompboxes and guitar amps to compressors and microphones, 12AX7 tubes are widely used for their even-order harmonic distortion and full frequency range. Offering high gain and low noise, this dual-triode tube delivers extended headroom and balanced tone complementary to an array of musical genres. The ECC83-TK/12AX7 is characterized by its clean highs, thick midrange, and prominent bass.

Dual-Triode Vacuum Tube    Ideal for Input & Inter-Stage Amplifiers    High Gain & Low Noise    Clean Headroom, Rich Harmonic Distortion    Well Balanced, Full Frequency Response    Smooth Highs, Rich Mids, Strong Lows

Newly manufactured and cryogenically treated rendition of the classic ECC83 dual-triode vacuum tube, commonly known by the American designation 12AX7

Great for input and inter-stage audio amplifiers used in all types of music and playing styles

Designed to allow cleaner headroom than higher gain 12AX7s when pushed into overdrive

Strongly defined lows, a rich midrange, and clean, smooth highs

High-gain and low-noise characteristics

Rich even-order harmonic distortion when driven into overdrive

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 remeasured before final packing

Related Questions and Answers

Q: 1. Will it work with 220V?

A: The METROVAC DataVac ESD Safe Pro Series Vacuum(BH # ME117117513) is a 120VAC device only. This multipurpose computer vacuum and blower features a 120 volt/4.5 amp, 70 CFM motor.

Q: 2. is this new or seacondhand?

A: This is a brand new ittem: All products purchased from B&H are brand new in the original factory box including packaging, all factory included accessories and factory warranty, unless otherwise stated to be USED, Refurbished, Open Box, or Demo.

Q: 3. Who makes?

A: This is a genuine Telefunken product.

Q: 4. Is it possible to recieve 4 of these tubes all matched?

A: I am sorry. We cannot promise any tube matching.

Q: 5. what is this? recreation? Old New Stock

A: The Telefunken VF14K Replacement Tube is a brand new replacement for the original VF14M or VF14 vacuum tube that was used in the original Neumann and Telefunken U47 and U48 large diaphragm microphone models. The VF14K tube is designed to fit directly into the tube socket of a U47 or U48 mic made by Neumann or Telefunken, and without the need for any modifications.

Q: 6. What version of Windows does the USB-recording feature require? Can I attach it to my Win 7-32bit PC?

A: This interface comes with a free version of Tracktion recording software which will run on Windows 7 with a minimum Intel Core 2 Duo 2 GHz Processor, 5400 RPM Hard Drive, and 4 GB RAM (8GB recommended).

Q: 7. this product new or secondhand?

A: This is a brand new item. All products purchased from B&H are brand new in the original factory box including packaging, all factory included accessories and factory warranty, unless otherwise stated to be USED, Refurbished, Open Box, or Demo.

Q: 8. Is this Telefunken E88CC the same as a 12AX7A tube?

A: No, the pin configuration is different.

Q: 9. Will my San Disk cfexpress reader read the Lexar cards?

A: Yes, a SanDisk CFexpress card reader will read Lexar CFexpress cards.

Q: 10. MFR #117-117513 Does this Metrovac model have a variable speed control?

A: No.