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Zaerix ECC82(12AU7 or CV491) NOS with boxes
Zaerix ECC82(12AU7 or CV491) NOS with boxes
Regular price
R 380.00 ZAR
Regular price
Sale price
R 380.00 ZAR
Shipping calculated at checkout.
Low stock: 1 left
Key Characteristics
- Tube Type: 9-pin miniature dual triode. [1]
- Equivalents: 12AU7, ECC802, E82CC, 5814, 6189, and CV4003/CV491. [1, 2]
- Gain Factor: Low gain (μ ≈ 17), ideal for clean headroom, line stages, phase inverters, and audio/hifi preamplifiers. [1, 2, 3]
- Rebranding Origin: Zaerix did not manufacture their own glass tubes; instead, they re-boxed surplus or OEM production from factories across the UK, Netherlands, Germany (such as RFT or Siemens/Valvo), India (Z&I), and the USSR. Depending on the specific batch, a Zaerix ECC82 can actually be a Mullard, Brimar, Siemens, or RFT-made tube. [1, 2, 3, 4, 5]
Comparison of Popular ECC82 / 12AU7 Options
| Brand / Model | Typical Origin | Common Plate / Getter Style | Sonic & Application Notes |
|---|---|---|---|
| Zaerix ECC82 / 12AU7 | Rebranded (UK, Holland, Germany, India, USSR) | Varies (Grey/black plates, halo or ring getter) | Performance depends heavily on the original OEM factory (e.g., Brimar, Mullard, RFT, or Philips). |
| JJ Electronic ECC82 | Slovakia | Short plate design | Warm and neutral character with low microphonics; great current production alternative. |
| Electro-Harmonix 12AU7A / ECC82 | Russia / Modern | Dual triode structure | Built for clean gain, tight response, and modern reliability in hi-fi and guitar amps. |
Product features
Product features
Materials and care
Materials and care
Merchandising tips
Merchandising tips
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