Re: Tektronix 570 Vacuum Tube Curve Tracer on eBay

John Williams

I remember selling a number of vacuum tube items to contractors for the military. They bought a bunch of 160 series indicators, power supplies and such. I was told that they were still in use in submarines and never were replaced, I suppose if it works, keep it. I can imagine that there is a lot of tube equipment out there for the same reason. It’s a nice feeling actually.

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