Barely used Rode NTK Tube Condenser Microphone, Ive had it in for a long time and it sounds great for home recording or studio recording, but I just never use it.  Here are the specs:

Rode NTK Tube Condenser Microphone

This is a tube mic designed exclusively for recording professionals who want what only the best can offer. The heart of the NTK is the Australian designed and manufactured HF-2 capsule. The electronic circuitry complementing this very sensitive transducer includes a hand-selected twin-triode 6922 valve and audiophile grade components and lay-out. The result is an ultra-wide dynamic range, very low noise, and stunning tube warmth. The NTK's rich valve sound is ideal for vocals, acoustic instruments, drum overheads, guitar amps and pianos. It includes a power supply, 30 foot cable, stand adapter and case.

Specifications

Large 1 inch capsule with gold plated diaphragm

Class A valve circuitry

Ultra low noise

Wide dynamic range

Hand-selected and graded 6922 twin-triode valve

Dedicated Power Supply

High strength heat-treated steel mesh head

Durable satin nickel finish

Internal capsule shock mounting

High level of RF rejection