216A Vacuum Tube

A Rare Early Triode from the Dawn of Radio

The 216A is an early vacuum triode from the pioneering years of radio broadcasting — a tube that predates the standardized numbering systems of the 1930s and represents the engineering ambition of an era when radio was still new and every design was an experiment. Used in early broadcast receivers and transmitters of the 1920s, the 216A is one of the rarest and most historically significant tubes a collector can source. If you're restoring a set from this era, finding a functional 216A is a milestone — and having one that's been tested and confirmed working is rarer still.

Tested and Ready to Install

Every 216A we sell is individually inspected before it ships — checked for emission and functionality. You receive a tube that is ready to install and perform. One tube per order. Inquire about specific brands at a 20% premium, or ask about tested used tubes for a 20% discount.

Own a Piece of Radio History

The 216A is not just a replacement part — it's a piece of the history of electronic communication. Whether you're completing a restoration or adding to a collection of early radio artifacts, this tube represents the craft and ingenuity of the engineers who built the medium from scratch. Stock is extremely limited. Don't wait.

Specifications:

• Type: Early triode (1920s era)
• Application: Early broadcast receivers, transmitters, pre-war radio restoration
• Condition: Tested and inspected
• Includes: 1 tube per order
• Premium brands available: +20% (inquire)
• Tested used tubes available: −20% (inquire)

Note: The product photo is a representative example. Actual tube appearance — including label style, glass envelope shape, and getter position — varies by manufacturer and production era.