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RCA 6SN7GTB NOS with boxes
RCA 6SN7GTB NOS with boxes
Regular price
R 800.00 ZAR
Regular price
Sale price
R 800.00 ZAR
Shipping calculated at checkout.
Low stock: 1 left
Key Characteristics & Sound Profile
- Tube Type: Octal (8-pin) dual triode. [1]
- Construction: Commonly features black plates (often with side-getter or bottom D-getter configurations) manufactured in the USA. [1, 2]
- Sonic Signature: Audiophiles often describe 1950s RCA GTB variants as offering a warm, smooth, and relaxed presentation with rich tones, contrasting with the brighter or more forward characteristics of brands like Sylvania. [1, 2, 3]
- Equivalence: The "GTB" designation indicates controlled-warm-up performance and shares common electrical compatibility with family variants like the 6SN7GT, 6SN7GTA, and VT-231 (though subtle internal geometry and midrange nuances can vary by decade and era). [1, 2]
Availability & Pricing
- New Old Stock (NOS) / Used: Because RCA stopped making these vintage glass tubes decades ago, they are sourced on the secondary and collector market (such as eBay, Etsy, and specialty tube vendors like TubeDepot). [1, 2, 3]
- Cost Range: Single tested or used RCA 6SN7GTB tubes typically range from about $20 to $50 depending on test strength, while matched pairs or NOS boxed sets can range from $50 to over $120+. [1, 2]
| Tube Feature / Attribute | RCA 6SN7GTB Details |
|---|---|
| Type | Dual Triode Vacuum Tube (8-Pin Octal) |
| Origin | Made in the USA (RCA) |
| Plate Structure | Black Plates (various getter and support-rod styles) |
| Typical Audio Role | Preamplifiers, Phase-Inverters, Driver Stages |
| Sound Character | Warm, smooth, relaxed midrange |
Product features
Product features
Materials and care
Materials and care
Merchandising tips
Merchandising tips
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