Johnmorrison's latest activity
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JJohnmorrison replied to the thread Unknown apparatus - vacuum tube of some kind?.It is not at all obvious how the copper discs were integrated...
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JJohnmorrison replied to the thread Unknown apparatus - vacuum tube of some kind?.It was left in the shop of the (deceased) previous owner of the house that I purchased some 12 years ago. He was known as a tinkerer. I...
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JJohnmorrison posted the thread Unknown apparatus - vacuum tube of some kind? in General Engineering.Hi - can anyone help me identify what this apparatus is? A vacuum tube of some kind? What are the thin copper discs for? It seems to be...
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