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ECC81 (12AT7) Mullard
ECC81 (12AT7) Mullard
Regular price
R 1,500.00 ZAR
Regular price
Sale price
R 1,500.00 ZAR
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Low stock: 10 left
The Mullard ECC81 (also known as the American 12AT7 equivalent or British military CV4024 / M8162) is a classic medium-impedance dual-triode vacuum tube designed originally for high-frequency (RF) and audio applications. [1, 2, 3]
Key Characteristics & Tone
- Sound Profile: Renowned for delivering a warm, clean, and dynamic sound with smooth, open highs and rich overtones without excessive high-gain preamp harshness. [1, 2, 3]
- Military Spec (CV4024): Many surviving Mullard ECC81 tubes are built to the ruggedized CV4024 specification supplied to the UK RAF and NATO forces. These feature a double-ribbed ladder plate anode structure and special copper plate supports designed to resist shock (up to 500g) and greatly reduce microphonics and noise. [1, 2]
- Common Uses: Used in vintage and modern hifi audio amplifiers, guitar amp phase inverters, reverb/gain stages, and vintage broadcast gear. [1, 2, 3]
Comparison of Popular ECC81 / 12AT7 Variants
| Variant / Brand | Origin / Type | Notable Features | Typical Tone / Application |
|---|---|---|---|
| Mullard CV4024 / ECC81 | UK (Mullard / Mitcham) | Double-ribbed ladder plates, ruggedized military build, low microphonics | Warm, dynamic, clean highs, classic British vintage audio |
| General Electric (GE) 6201 / 12AT7WB | USA (GE 5-Star) | High-reliability industrial/military grade, sturdy construction | Neutral, crisp, high durability, lower coloration |
| JJ Tesla ECC81 | Slovakia (Modern Production) | Available in standard and gold-pin variants | Balanced response, modern availability, budget-friendly |
Product features
Product features
Materials and care
Materials and care
Merchandising tips
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