Simple wireless phone charger circuit. This is as basic as it gets. DIY wireless phone charger.
5th attempt to make this video. I switched to a Linux machine and the video quality was not good. I am back on windows 8.1 pro but have half built another machine for Linux. I liked the video editing software on Linux but the cam capture software was not good codex quality. Anyways, that’s nothing to do with the DS1302 Clock KIt off eBay and from Asia. I like this little kit and was a great second attempt at SMD work. This video shows the basic functions of the clock.
My second attempt at SMD soldering. This is quite a nice little clock.
Been buying them clock kits again. This DS1302 Rotating LED Electronic Digital Clock Kit has a temperature sensor and is actually nice to look at.
This is also my second attempt at SMD soldering and things are a little better, I am getting used to the tiny sizes.
DSO138 Oscilloscope kit.
Looks like they have cleaned it up a bit or at least on the test signal. Will hook it up to JYE Tech FG085 Function Generator tomorrow and see what it looks like.
An upgraded version of the DSO138 Oscilloscope by JYE Tech Ltd.
Digital Storage Oscilloscope, Electronic kit build including SMD’s
This version I have to solder the SMD’s which are normally pre-soldered. I have never soldered SMD’s before so am popping my SMD cherry, if you get me.
They claim: Significantly lowered noises. Comparing: [NEW] vs [OLD] in measuring the built-in test signal.
Waveform can be saved to and recalled from non-volatile memory.
Enhancement in Test Mode with auto short-circuit detection capability.
Supports two types of TFT controllers (ILI9341 and ILI9325/9328).
Going to build pre-test, calibrate the probe and troubleshoot if necessary.
I am not sure how this works. With the power on it does not matter if the tube is in or not in night mode it works pulling in signals nice and loud through my amp. In crystal mode nearly nothing and the two stations it picks are are hardly audible.. With it in day mode it will not work without the tube but it distorts real bad when you tune it in.
I decided to change the detector diode for one which has a lower forward voltage and the blue LED for a orange/yellow LED. I think it looks better but that is just my opinion. Truth be told I would prefer it a little dimmer and will probably make it so.
I give it a thumbs up and now have a reference to build my own too.
I bought a Crystal Radio Set. A Poldhu, its a kit on eBay. I wanted to compared a real crystal radio receiver with one that I had made. So I bought a DIY kit. It has a Valve / Tube as well as the ability to be just crystal. After I built it I did make a couple of changes, not because the set was bad, because I wanted an aesthetics change and to try a germanium detector diode with a lower forward voltage to see what if any difference it would make.
So far so good with this Poldhu Crystal Radio set. Here is a very quick build and first play.