1996 Burb 454

[HotWheelsBurban]

Many guitar and bass amplifiers use vacuum tubes( overseas they're called"valves"). One of the side effects of the Russia/Ukraine war is that many of the best ones were made there.....

 

[454cid]

Microwave ovens have vacuum tubes???

News to me (I've taken several apart)

That's what the magnetron is. They're just not glass on the outside.