Real time kit build: walkie talkies #1
Experimental real time build of a walkie talkie kit which came from Banggood. In this part I solder in two…
Christmas led lights extreme high current test
How much current can pound shop Christmas LED lights take? More than you might imagine. What I find interesting is…
Pound shop xmas tree hack: one transistor led flasher with ldr
After buying a rather lifeless LED Christmas tree from the pound shop, I thought I'd liven things up with an…
Xmas gift idea: suaoki g7 18,000mah jump starter
Suaoki G7 600A 18000mAh Peak Portable Car Jump Starter Battery Booster Charger for SLR Laptop http://www.amazon.co.uk/gp/product/B014QXOIZY http://www.amazon.com/dp/B015O7AK62 Another Christmas gift
Xmas gift idea: skyrc mc3000 battery charger/analyser
SkyRC MC3000 Smart Bluetooth Charger from GearBest http://goo.gl/N39yNu Not a review, just a Christmas gift idea. But this is a…
Xmas gift idea: h20 and h606 hexacopters
Not a review, just some Christmas gift ideas. But these are gifts to give yourself - from yourself! I like…
Julian’s postbag: #52 – big box of integrated circuits part2
Getting a 43-year old decoder chip to do something logical
Julian’s postbag: #52 – big box of integrated circuits part1
Massive selection of old integrated circuits https://en.wikipedia.org/wiki/List_of_7400_series_integrated_circuits
Review: thrunite tn12 2016 version led torch flashlight
ThruNite Torch UK: http://amazon.co.uk/shops/A2DUUB2J3TY3X1 TN12 2016 torch £35.95 ThruNite Flashlight US: http://amazon.com/thrunite ThruNite Flashlight CA: http://www.amazon.ca/shops/A1BNV2EQ2F
Julian’s logic: the s/r set/reset latch
You can build an S/R latch using a couple of cross-coupled NOR gates (or NAND gates). But is this a…