I'd love to tell you the MXL V69 is a great sounding mic. It is. It's also the most unreliable piece of shit I've ever encountered in my life. I have two. They've made it back to MXL 5 times and both of them are dead at the moment. I'm tired of shipping them.
For $300 snag a used AT4050 or something and call it a day.
Don't get too wound up about products that "tube" in the name. How much do you want to bet that I could toss up a clip of 3 different mics and you wouldn't be able to guess which one is the tube mic?
Actually, there is a tube mic in this:
Voiceover Microphone Shootout
and this:
Electric Guitar Microphone Shootout
Brandon