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A PCB via is a hole that connects a signal between two surfaces - the hole is typically very tiny and chemically plated to be conductive - they are essentially wires that carry signals between layers. Because vias are typically small, they can't carry much current, so if you need heavier...

These are either solid tungsten carbide or TC tipped drills for drilling holes and vias in newly manufactured PCBs. They tend to be in very small sizes only and are quite brittle. Looking at the markings, I think that these are USA-made, rather than European. In PCB plants, the CNC machines get...

Terrifyingly, that clip is nearly 25 years old - first broadcast in April 1999 - Series 1, episode 9 - "The Knack". Used to love Dilbert when I was doing serious engineering stuff. Regrettably, Scot Adams has turned out to have some unpleasant views and many news outlets stopped carrying...

If you never want to remove it, use a shear nut and loctite. M8 Shear Nut A4 stainless steel (Permacone - snapoff - Security - Tamper Proof) Pack Size : 8 Amazon.co.uk Otherwise use a tamper proof security nut - very like a locking wheel nut for a car, but smaller. You keep the "key" head and...

The general rule (so I was taught) with buck converters is that the input should be no more than about 40V or so above output. I would have thought that using a buck topology for a mains-driven USB charger would be insane. If the FET fails, you get half wave rectified mains direct to the...

You totally sure about that? They tend to be all small SMPSs so have galvanic isolation in the transformer. I'd be interested if you could find a UK-approved (GENUINELY approved, that is. Not some knock-off with random BSnnn stickers on it from some of the well-known Far-Eastern sites) that did...

The client is normally the free WaveForms app which runs on both Windows & Linux. I've not tried using it with LabView as I find WaveForms more than adequate for my needs. Hardware silo depth is 32k for each of the 16 channels but you can record millions of samples in WaveForms and then wind...

Analog Discovery 3 I use it all the time. Lovely little thing but a serious bit of kit which does just so much in a tiny package. I had an AD2 for years and have just upgraded. Digilent, who make it, have a long pedigree with this sort of kit and they're now owned by National Instrument so will...

You'll need a type C breaker, not the default type B. I run my HC260C on a 16A commando.

Comes down to budget and expectations really. Our whole property is on Unifi. Yes, it requires some knowledge to set up, but once that's done it's pretty easy to maintain... You can always get a pro to set it up for you. One thing I would say is consider having a PoE (Power over Ethernet)...

RFID tags. The simple strips simply resonate when excited by an RF field - this is easily detected. More complicated tags respond with a unique ID when pinged. Regarding the adulteration of honey, it's not just Manuka honey (which is largely a con anyway). Something like 80% of all UK...

Blind mortice?

Got my oak eventually. Very pleased. Reasonable price and good quality. The bench is under the tree in the photo below - the building there is my workshop & office - the path is the daily commute... First step, dismantle the old bench planking. will need angle grinder to remove old coach...

As some have mentioned, it depends on the application - every situation is different. We did an eco self-build about 15 years ago. I ran trunking and put in CAT5e to the kids' bedrooms as I didn't want WiFi in their rooms - at the time there was a lot of discussion about possible risks to kids'...

Just to be clear to non-beekeepers, a nuc is not a full hive and they are actually rarely outside over-winter. They are used mainly for temporary accomodation for swarms and "splits", not for honey production etc. They are designed to be easily transportable with maybe only 5 or 6 brood frames...

I have some sheets of Class II 12mm B/BB plywood sitting around and I want to make some small beehives from them - in the Beekeeping world these are known as "nucs". They may be outside all winter... Class II is not exterior grade/marine, so needs extra protection. Further, as these boxes will...

I've used PCBWay on many occasions. PCBWay are high quality, fast, helpful and astonishingly cheap. They have a special prototyping service at PCB Prototype only $5 For 10 pieces of double sided FR4, each board less than 100mm on a side, plated through, silk screened and coated. USD 5. For...

Well spotted that man! 1999. It's just come out of the garage stack of old bikes to be sold (was SWMBO's). Not in great condition (shocks gone), so probably beyond economic repair. Was going to take it to a boot fair... We use the two carbon road bikes, both built by Cycle Fit in London, and my...

I've used these very successfully for years Sportneer Bike Repair Stand Bike Wall Mounts Bike Stand Bike Rack Bicycle Wall Hanger Bike Clamp Adjustable Removable Home Bicycle Maintenance Stand for Variety of Bikes https://amzn.eu/d/8cQvhEk They come as two parts - a wall fixing and the clamp...

I am leaning towards air-dried oak or iroko. I've made some nice benches for the NT out of air&kiln-dried oak - insanely, the Trust didn't let us use their own oak - we had to buy it in. The reason that the bench is under that oak is that it's an ideal place to sit and look at the view, which...