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  • NOS-5931 Audio Vacuum Tube Thumbnail

Sylvania Gold-Brand 5931

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Product code: NOS-5931

Availability: Usually ships within 24 hours.

USD $‎79.95 Each

USD $‎79.95
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  • The Sylvania Gold-Brand 5931 tube is a very robust 5U4-GB tube variant. It has a large diameter base and is considerably taller than a standard 5U4GB tube. Because of it's wider base diameter, the 5931 tube may not fit into all 5U4 tube applications.

    5U4 Types5U4 Tube Types
  • Additional Information and Downloads

    What does "NOS" mean, anyway?:

    Commonly known as "NOS," the term New Old Stock simply refers to tubes that were made years ago but have never been used. Much like antiques, "NOS" tubes are currently not being manufactured and this means their supply is dwindling while the price continues to rise.

    For most NOS tubes we have a variety of brands available. Typically these are the common brands such as RCA, Sylvania, GE, Raytheon, etc. However, there are instances where lesser known brands are in stock. If you have a particular brand you prefer you can simply request it in the Order Comment box when you place your order.

  • Warranty Information and Return Policy

    Warranty Period: 3 months

    All our tubes are guaranteed for 3 months from the date of purchase. (Any exceptions will be noted on that tube's Warranty tab)

    If you receive a tube that does not perform to the manufacturer's specifications, please do the following:

    - contact us to get a return authorization
    - return it via regular mail within 90 days from when we shipped it, and we will provide an exchange or refund of the full purchase price of the tube.

    Returns not related to warranty or defect will be considered at our discretion, and are subject to a 15% restocking fee.

    We can not accept returns that don't have an authorization, are past 3 month, or are returned improperly.

    These guidelines may be updated without notice.


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