Phillips Raytheon 5840W Vacuum Tube with PCB Mount (TF47)

The Philips Raytheon 5840W (EF732) is a low-noise, military-spec sub-miniature vacuum tube prized for microphone applications. Designed for exceptional stability and low microphonics, it delivers clean gain and a smooth, balanced tonal response when amplifying delicate capsule signals. Its compact size, efficient operation, and proven reliability make it an ideal choice for high-end tube microphones and head-amp circuits where low noise, clarity, and consistency are critical. This vacuum tube is PCB-mounted for direct plug-in replacement into the TF47 microphone exclusively.