Can these tubes be used in a vintage Vibro Champ?

Read through a few articles about your vintage Vibro Champ, and it looks like the consensus is that this tube would work better for the V1 position. V2 would be a 12AX7, V3 6V6, and V4 5Y3GT. It is my understanding the 12AU7 has less gain. You could try a few different tubes in the pre gain to see what you think.

I assume 12 AU 7 is two tubes in one obviously maintains stereo sepeartion Common cathode which is grounded normally anyway ?

To be precise, the 12AU7 is two independent triodes in a single tube. Like any other electronic component, these can be used in all sorts of applications, limited only by the circuit designers imagination and ingenuity. They can by used in audio and RF circuits... These could be used in a stereo design, but they are not limited to that application. The cathodes are not common between each section, and depending on the circuit design may operate at some potential other than ground.

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JJ ElectronICs 12AU7 / ECC82 Preamp Vacuum Tube

Product ID: 516540318

Details

Brand
british audio
Colour
Black
Ear placement
Over Ear
Form factor
In Ear
Impedance
16 Ohms

🎧Versatile compatibility with pro gear

🔋Dual triode design for rich tone

🎛️Low microphonics for clean audio

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AED 150

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Description

🎶 Elevate your sound — the vintage tube your setup deserves!

LIGHTWEIGHT DURABLE - Crafted for easy handling without compromising on robust performance.
PRECISION AUDIO CLARITY - Engineered for low microphonics, ensuring noise-free, pristine sound reproduction.
PRO GRADE COMPATIBILITY - Seamlessly integrates with amplifiers, mixers, and audio monitoring setups.
CLASSIC DUAL TRIODE POWER - Experience warm, balanced amplification with the iconic 12AU7/ECC82 tube design.
ESSENTIAL FOR AUDIOPHILES - Elevate your recording and monitoring sessions with a trusted British Audio brand.

The JJ ElectronICs 12AU7 / ECC82 Preamp Vacuum Tube is a lightweight, dual triode vacuum tube designed for professional audio amplification and monitoring. Compatible with a wide range of audio equipment including amplifiers, mixers, and receivers, it delivers low microphonics for clear, warm sound reproduction, making it a must-have for audiophiles and recording professionals seeking vintage tonal quality.

Specifications

ASIN	B0002M728O
Additional Features	Lightweight
Age Range Description	Adult
Antenna Location	Audio Monitoring
Audio Driver Type	Balanced Armature Driver
Bluetooth Version	4.0
Brand	british audio
Built-In Media	Cable
Cable Features	Detachable
Color	Black
Colour	Black
Compatible Devices	Audio Equipment, Amplifiers, Mixers, Receivers
Connectivity Technology	Wired
Control Method	Remote
Control Type	Remote Control
Customer Package Type	FFP
Ear placement	Over Ear
Earpiece Shape	In Ear & Over Ear
Enclosure Material	Faux Leather
Form factor	In Ear
Headphone Folding Features	In Ear
Headphone Jack	3.5 mm Jack
Headphones Ear Placement	Over Ear
Impedance	16 Ohms
Is Autographed	No
Manufacturer	JJ ElectronICs
Model Name	T-12AU7-JJ
Model Number	T-12AU7-JJ
Noise Control	None
Noise control	None
Number of Items	1
Specific Uses For Product	Audio monitoring, Recording, Music
UPC	844632022074
Unit Count	1.0 Count
Water Resistance Level	Not Water Resistant
Wireless Technology	Bluetooth

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