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JJ 12AX7 / ECC83S

Description

Sweet and warm sounding preamp tube with high gain. We recommend this tube for guitar/bass amps.

Files:

Datasheet

Safety Information

Safety Information for Vacuum Tubes

For all electrical, electromechanical and mechanical components, the specifications and operating parameters arising from the respective type standard generally apply.
Further information, where available, can be found in the respective data sheets and product descriptions included with the product.

General Information

NOT SUITABLE FOR CHILDREN - choking hazard due to small parts
NOT SUITABLE FOR UNTRAINED PERSONS - danger to life due to high voltages
The safety and processing requirements applicable to the component must be observed
CE conformity applies only when installed professionally
Warranty becomes void in case of improper handling
The operator is responsible for proper installation
Local regulations and VDE provisions must be complied with
Never exceed the rated power
Never exceed the rated voltages and currents

Required Expertise

Use of measuring instruments (multimeter, oscilloscope) and evaluation of measurement results
Safe handling of high voltages (up to 500V and more)
Reading and understanding circuit diagrams
Selection of appropriate tools
Knowledge of electrical components and their characteristics
First-aid knowledge for electrical accidents
Knowledge of VDE regulations and safety requirements

Amplifier Tubes

Hazard due to high voltages
Hazard due to very high heat generation
Hazard due to glass breakage
Hazard due to UV radiation in case of defective tubes

Manufacturer

Herstellerinformationen | Manufacturer Information
JJ Electronic
A. Hlinku 3
022 01 ČADCA
Slowakische Republik
www.jj-electronic.com

Customer reviews (12)

Essential information about customer reviews We do not verify that the published reviews come from such consumers who have actually used or purchased the rated goods or services. All reviews, i.e. positive and negative, are published. No reviews that are unobjective, offensive or unrelated to the product will be published.

Lars K., 08/27/2019

I put these in the V2 and V3 positions of a VOXAC15C1. They sound good. For the V1 use either a 'V1' rated JJECC83S or a Tung Sol Reissue. Both sound good with the Tung Sol offering a bit more clarity and gain. Both sound good with the Tung Sol offering a bit more clarity and gain.
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Corrado, 03/02/2010

I have put it in v2,v3,v4 position of my Peavey Ultra Plus following the suggestion of TT. I don't have a lot of experience about tubes but the clean is still sparkly and I don't notify any noise.I've replaced a Sovtek 12ax7 whit this. The crunch and ultra channel aren't noisy also. I'm satisfied and my wallet also! clean is still sparkly and I don't notify any noise.I've replaced a Sovtek 12ax7 whit this. The crunch and ultra channel aren't noisy also. I'm satisfied and my wallet also!
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Thiele-Small Parameters

Resonant Frequency (Fs): 94.49 Hz
DC Resistance (Re): 6.3 Ohm
Coil Inductance (Le): 8 mH
Mechanical Q (Qms): 8.081
Electromagnetic Q (Qes): 0.6081
Total Q (Qts): 0.5655
Compliance Equiv. Vol. (Vas): 1.056 cu ft
Mech. Compliance of Susp. (Cms): 155.752 mm/N
BL Product (BL): T-M
Diaphragm Mass Inc. Airload (Mms): 18.2153 grams
Surface Area of Cone (Sd): 366.0962 cm squared
Sound Pressure Level (spl): 98.02 db

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Thiele-Small Parameters

Resonant Frequency (Fs): 49.58 Hz
DC Resistance (Re): 5.84 Ohm
Coil Inductance (Le): 0.35 mH
Mechanical Q (Qms): 7.41
Electromagnetic Q (Qes): 0.25
Total Q (Qts): 0.24
Compliance Equiv. Vol. (Vas): 50.51 cu ft
Mech. Compliance of Susp. (Cms): 0.27 mm/N
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Sound Pressure Level (spl): 99.67 db

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General Specifications

Nominal diameter: 10", 254mm
Power rating: 200W
Nominal impedance: 8Ω
Sensitivity: 94dB
Magnet type: Ferrite
Voice coil diameter: 2", 50.8mm
Coil material: Copper
Cone material: Kevlar loaded paper
Former material: Polyimide
Surround material: Cloth-sealed
Frequency range: 45-3500Hz
Xmax: 0.15", 4mm
Gap depth: 0.31", 8mm
Voice coil winding width: 0.62", 16mm

Small Signal Parameters

D: 0.21m/8.3in
Fs: 68Hz
Mms: 32.9g/1.16oz
Qms: 2.54
Qes: 0.53
Mmd: 29.26g/1.03oz
Qts: 0.44
Re: 6.03Ω
Vas: 25.8lt/0.91cu.ft.
BI: 12.88Tm
Cms: 0.15mm/N
Rms: 5.79kg/s
Le (at 1kHz): 0.92mH

Mounting Information

Cut-out diameter: 9", 229mm
Diameter: 10.1", 256mm
Mounting slot dimensions: 0.24x0.31", 6x8mm Ø
Mounting slot PCD: 9.6", 245mm
Number of mounting slots: 4
Overall depth: 4.3", 110mm
Unit weight: 6.6lb, 3kg

89,00 €