It’s a long tail pair amplifier. It’s a pretty old design that’s been around since vacuum tubes. It has some nice features even for RF uses.
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I call it the Happy Fun* Death Box™. I had been meaning to make something like this for our egg packaging operation, but it suddenly got more timely.
Do not so much as glance at Happy Fun* Death Box™, even with eye protection.
*Fun not guaranteed for any tissue receiving 254 nanometers of base pair bustin’ happiness.
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Maybe you could add an interlock to the lid, such that if the lid is raised the lamp shuts off?
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Logically, yes. And even actually, yes. But I feel that because of the complexity that would add, both the overall safety and quality of the device goes down well before it comes back up.
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Getting super bored at home, so I’m painting light bulbs:
The silver didn’t really work out, so…
That killed a couple hours. Onward!
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…and the pre-agared petris dishes arrived yesterday, so this will soon be an evidence-based Happy Fun* Death Ray™.
Suggestions/requests for our experiments? We plan to sample various things around the house, such as cheek swabs from various species, and fingertips pre- and post-washing, and then test the effect of different UV-C dwell times.
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Spring plantings. I multi-sow peas in modules.
At about week 2 (today) I thin them out leaving one strong shoot per module. The young pea shoots go great in salads! A nice way to change up the quarantine monotony.
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Nope.
One of their neighbours had put a contract on the house ages ago, contingent on them selling their own house to raise the finance. There had been no progress on this for months, which is why the owners had given up on them and started marketing the house.
Apparently the neighbours came in on the day the contract expired with a cheque in hand. The owners say that they were pissed at the neighbours and would have preferred to sell to me, but claim that their hands were tied by the contract.
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Well that’s pretty shitty. Sorry to hear that.
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whoooooahhhh that is very cool
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I need to actually produce something. I haven’t in months except work. I am in time out with the rest of you, so I might this weekend.
Wife and daughter making homemade masks. This was by request from a friend of my wife who works at a local hospital. Supplies of the regular gear are non existent. These are certainly not 100% medical grade, but better than nothing.
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I’ve been thinking about what materials around the house might be best for homemade masks that would be at least somewhat effective to avoid transmission.
Unused vacuum cleaner filters? Re-usable shopping bag cloth? Workshop-grade dusk mask filters?
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These are going to be stuffed with HEPA furnace filters. They have a pouch into which a piece of filter pad can be inserted. It allows for the mask to be laundered.
Final product.
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Studies have been done! Go with the vacuum cleaner bag.
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My 10-year-old’s fencing classes were cancelled this month for obvious reasons. So as good an excuse as any to make a sword. (Dear god I hope I don’t come to regret this…) We forged the blade out of steel, and today we just finished casting the blade guard and pommel out of pewter.
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Not that my opinion counts for anything, but… gorgeous kids, excellent sword!
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will you go back in time and be my dad?
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Duct tape scabbard?
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No, it’s sewn from the same fake leather we harvested from an abandoned sidewalk sofa when we made the bellows for the forge.
E.T.A: it’s hard to see in the photos but he engraved the blade guard with “ELF BERT,” a reference to the famed Viking ULFBERHT swords that he learned about in a Nova episode.
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