Thank you for viewing. Price reduced for a limited time! Set of 6 Western Electric 407A vacuum tubes. About a dozen years ago, I bought these intending to build an amplifier, but I never ended up using them. However, they are valuable now, and I couldn't bring myself to sell them, so I've kept them for a long time. I'm listing them because I'd like to pass them on to someone who enjoys audio. I haven't been able to test them, so their operation is unconfirmed. They are old, and some may not function properly. Please understand this before purchasing. - Quantity: 6 tubes