

Useless safety theater. The actuation force this thing must have if it can ambulate and manipulate things? A knife is the least of my worries. What if it grabs me and breaks my arm or kicks me and shatters my shin? This thing would be far more efficient than a human at beating you to death.
The grip strength alone!












Depends on the tube. there are still decent supplies of many popular tubes. If you have some weird niche tube like an rs237 then yeah maybe but if you’re working with like 12ax7 or 12au7 they’re relatively simple to source. Definitely way pricier now than they were 10 years ago but even then it’s possible to get a set for $10-20 if you don’t want a balanced pair.