You are purchasing: Vintage Electronic Vacuum Tube Brand: RCA Part number: 12MD8 Condition: New Other: New Old Stock! The box says Sylvania but it's an RCA. We ship within 24 hours of purchase (excluding weekends & holidays). You may return an item within 60 days of your purchase. Please make sure items are returned in the same condition as they were when you received them. This is a smoke-free environment! We aim to earn 5 Star feedback on each sell we make. Please leave positive feedback if you're pleased with your purchase. If there's a problem, please contact us through the message system and give us a chance to earn 5 Star feedback from you.