6AF5 Vacuum Tube

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.

A Sharp-Cutoff Pentode Built for Precision

The 6AF5 is a sharp-cutoff pentode vacuum tube used in IF amplifier and detector stages of vintage radio receivers. Its sharp cutoff characteristic made it ideal for applications requiring precise gain control and selectivity — qualities that defined the performance of the best radio sets of the late 1930s and 1940s. If your vintage radio calls for a 6AF5, there is no modern substitute that replicates its behavior in the original circuit. The correct tube is the only path to correct performance.

Tested and Ready to Install

Every 6AF5 we sell is individually inspected before it ships — checked for emission, shorts, and noise. You receive a tube that is ready to install and perform, not one that requires bench testing before it earns a place in your circuit. The octal 8-pin base is robust and easy to handle, and the tube drops directly into any socket that originally accepted a 6AF5. One tube per order. Inquire about specific brands at a 20% premium, or ask about tested used tubes for a 20% discount.

The Right Part for a Correct Restoration

Vintage radio restoration is a discipline of accuracy. Every component in the signal chain was chosen for a reason, and the 6AF5 is no exception. Restore your set with the correct tube and hear the difference that the right part makes — the selectivity, the sensitivity, and the signal-to-noise ratio that the original designers intended.

Specifications:

• Type: Sharp-cutoff pentode
• Base: Octal 8-pin
• Application: IF amplifier, detector stages, vintage radio receivers
• Condition: Tested and inspected
• Includes: 1 tube per order
• Premium brands available: +20% (inquire)
• Tested used tubes available: −20% (inquire)