JJ 12AX7 / ECC83S

Tube-Town E83CC Preamp-Tube

High-quality 12AX7 / ECC83 / 7025 preamp tube with low background noise and reduced feedback tendency due to short anode plates, as well as a powerful bass and a dense sound. Very suitable for input stages with high amplification or amplifiers with generally high gain.
Dropin replacement for all 12AX7, ECC83, 7025, and E83CC tubes.

Electrical Characteristics

• Heater voltage (Uf): 6.3V or 12.6V
• Heater current (If): 300mA at 6.3V, 150mA at 12.6V
• Anode voltage (Ua): Maximum 300V
• Grid voltages (Ug1): -2V (typical)
• Grid voltages: -50V to 0V
• Anode current (Ia): 1.2mA (typical)
• Anode power dissipation: Maximum 1W per triode
• Anode resistance (ra): 62.5kΩ
• Amplification factor (μ): 100
• Transconductance (S): 1.6mA/V
• Input capacitance (Cin): 1.6pF
• Output capacitance (Cout): 1.6pF

Mechanical Characteristics

• Socket: B9A (Noval)
• Number of pins: 9

Pin Configuration

• 1 Anode (Triode 1)
• 2 Grid (Triode 1)
• 3 Cathode (Triode 1)
• 4 Heater (f)
• 5 Heater (f)
• 6 Anode (Triode 2)
• 7 Grid (Triode 2)
• 8 Cathode (Triode 2)
• 9 Center Heater (f)

Application Notes

• Heater operation: The tube can be operated with 6.3V or 12.6V, depending on the circuit design.
• Grid resistors: It is recommended to use grid resistors of at least 1MΩ to ensure stable functionality.
• Coupling capacitors: Capacitors with low capacitance (typically 0.1µF) are recommended to minimize high-frequency interference.

Custom Shop Faceplate, Laserfoil 0,2 mm self-adhesive

• Material: 0,2 mm laser foil self-adhesive
• Working area: see option list
• Colors: see option list
• Engraving: Yes
• Cutting: Yes
• Resolution: max. 500 dpi
• Machining: Laser

The thickness of this material is just 0.2 mm. It is flexible and can be easily laid around curves and corners. The material is supplied with a self-adhesive backside. The backside reaches its maximum adhesive strength after several hours, corrections of the alignment are therefore possible at the beginning of the gluing process without major impairment of the adhesive strength. The surface should be free of dirt, dust, oil and other contaminants.

Foil marked with "UV-resist" is also suitable for outdoor use.

Important:

We will not produce faceplate which contain copyright-protected elements like logos or names !

Bitmaps and Inkscape: you should NOT use bitmaps, because this causes many problems: the PDF file could be corrupt or the quality of the finished product is bad etc.. Bitmaps should always be converted to vector graphics before they are used in the layout. There are numerous online converters which convert bitmaps (PNG, JPG etc.) to SVG. Use them, convert the Bitmap and avoid problems.

How does it work ?

First of all you should read the documents and infos on the TT LaserShop Pages !

a) Select the required size, material and color combination

Hint: Several objects can be placed on a work surface, so cost-efficient material processing is possible. Example: two plates with a size of 55 x 490 mm (front and back plate) can be placed on a work space H2 with the overall size of 150 x 600 mm and can be ordered together. The configurations and optimizations have to be present in the submitted data.  

b) Submit the order through the online shop.

c) Prepare the data according to our specifications. You can UPLOAD the finished data below on the page or sent it to us after completion of the order by e-mail (info at tube-town.de).

d) That's it. The rest is our job.


Note on the Parameter "Plates per Sheet"
The number of plates or logos per sheet. The more plates are on one sheet the longer the runtime is. We can make a maximum of 40 plates per sheet.

Note on "Logo-Option"
If your data contains large areas which need to be engraved (mostly seen on logos or plates for stomp-boxes) then you should check this option then we will engrave the plates twice to make sure that the quality is a as good as possible.
In principle, however, it should be avoided to use large, monochrome areas because one will always see small lines from the laser engraver.
 

 !! IMPORTANT: WHEN CREATING THE PDF FILE, MAKE SURE TO CONVERT THE FONTS TO CURVES. !!
Overview of the requirements click here

2 tubes, matched as pair

5881 Tube by JJ

Files:

• Datasheet

• Metalfilm Resistor RN65D
• Very low noise (- 40 dB)
• Very low voltage coefficient (5 ppm/V)
• Military-Spezification
• Tolerance: 1 %
• Power Rating:: 0.5 W (1/2 W)
• Voltage Rating: 350 V
• Temperature Coefficient:: +/- 100 PPM / C
• Series: CMF (Military RN, RL)
• Operating Temperature Range: - 65 C to + 175 C
• Dimensions: 4.57 mm Dia. x 4.57 mm W x 14.27 mm L
• RoHS: NO

• Metalfilm Resistor RN65D
• Very low noise (- 40 dB)
• Very low voltage coefficient (5 ppm/V)
• Military-Spezification
• Tolerance: 1 %
• Power Rating:: 0.5 W (1/2 W)
• Voltage Rating: 350 V
• Temperature Coefficient:: +/- 100 PPM / C
• Series: CMF (Military RN, RL)
• Operating Temperature Range: - 65 C to + 175 C
• Dimensions: 4.57 mm Dia. x 4.57 mm W x 14.27 mm L
• RoHS: NO

• Output voltage: 12 V/DC
• Output curent: 2000 mA
• Input voltage: 230 V/50 Hz