[Nick Poole] does a lot of custom work with vacuum tubes — so much so that ... A set of addressable LEDs provide the status of the various parts of the system, and mechanical keyboard switches ...
I probably ran big, industrial-sized shop vacuums more hours than I did the machining equipment. A good workshop and car vacuum is an investment you will appreciate every time you use it.
circuits [David] has already built vacuum tube versions of. The only part left was the discharge transistor; a pentode was enlisted to stand in for that vital function, making the circuit complete.
You’re willing to spend on a vacuum that can last. The best uprights are pricey, but they have long warranties and replaceable and repairable parts, and they should last for a decade or more.
None of us are potheads anymore, and most of our partying days are behind us, but it's nice to be able to go to a store, pick up some ... pretty much nothing for older kids and tweens aside ...
The suction hasn’t diminished, and the vacuum has withstood being dropped and knocked over. Many of its parts, including its ... and it can store multiple maps for different levels of your ...