OT [Slightly] Ipad Air replacement

It is the 32G version and it hasn't run out of space yet. There is over 14g free on the C drive ATM. Win10 and office installed.

I did have to download the ISO for the very first update as there wasn't enough room to download and decompress it and I didn't have an SD card handy. I just put it on a USB stick and did it from there.

If you don't run disk cleanup it leaves a restoreable copy of the original on the C drive so you can go back if you want.

Isn't the deal that things like the Linx (I have the Win8 version unfortunately) hold the OS in compressed form and this relates to the updates? I used to know about this, but now I can't remember much except that it changed between W8 and 10..

I haven't seen anything, including a recent Surface, that tempts me in any way on from an old Lenovo X200 Tablet laptop running W7. If an X201,

Hi Tim, Would you believe how easy it is to instantly jump to the wrong conclusion!

I never made the connection at all.

My original PSU was left in a Travelodge and the problem must have occurred afterward, I failed to recognise the link.

Unplugged the PSU from the Ipad this morning, and instant success.

One major moan with the thing is now out of the way.

Many thanks, your advice is much appreciated.

Regards

AB

This sounds good, I like the portability of the Ipad, but actually one of the things I miss most is the mouse.

I cannot get used to screen/ finger manipulations, I even find it frustrating on a Kindle touch also.

Would you believe it was an Ipad stick. They are of limited use and dammned expensive, but kind of convenient to transfer a PDF manual over form a clients PC.

I must admit flexibility is nice,

I'm currently using my old Dell Lattitude, XP and Linux, with separate HDD,s as Linux has been a bit of a pain in the past, upgrades have left me unable to boot into windows.

Nice laptop but not too portable and the battery life is not fantastic even after a replacement. For some reason it is getting seriously slow also, this is regardless of what OS I,m using.

AB

If it?s any consolation, it took me a while to realise what was going on when I switched to using a mains/USB combined socket next to my bed. It was my wife who noticed the association first!

Tim

I do too a little, what I miss most is being able to open multiple browers windows.

I don;t find that a problem although I really wish there were cursor keys o n the keyboard layout.

Apple make pencils , a friend as an iPad stick but it's not made by Apple b ut I've never seen the point of them, well I can see a point but not as in what use they are.

I've done that without a pencil or point just tapping on the screen once I' d emailed it to myself. Did that 2 weeks go for my washing machine manual.

Sounds like a nice feature to me ;-)

Well hardware does age and sorteare tend gwt larger and more resource hungr y.

I don't understand this practice of tying the Ov rail of the ELV output to the joint between the two series caps across the mains input via a 1 or 10nF cap instead of specifying a shielded transformer where an insulated foil is wound over the mains and feedback wings for just over one turn to give full coverage without forming a single turn shorted winding and connecting it via a 10nF class X cap to the neutral pin (or the centre tap of the capacitor divider across the mains), leaving the output to float with only a few dozen picofarad's worth of coupling to a high impedance half mains voltage RF 'grounding point' instead of a thousand or more picofarad's worth of coupling.

The whole idea of this coupling capacitor is to tie the output to a ground reference[1] with respect to the 50 to 100KHz switching transients used to drive the high frequency step down and isolation transformer. Whilst this provides a low impedance shunt path to 'ground' for the switching transients, it also, innevitably, provides a very high impedance link to half mains voltage which, whilst safe, can nevertheless still be an unpleasant irritation. Spending an extra penny or two to incorporate an inter-winding screen can significantly reduce this effect.

This issue of "Mains Tingle" on the ELV output arises out of the use of class II double insulated construction, devoid of any safety earth to tie the ELV to via a 1 or 10nF cap. It seems that rather than use the neutral pin to connect to what *should* normally be very close to ground potential, they compromise against ring main polarity errors by connecting to the high impedance half mains voltage point formed at the joint between the two series connected caps wired across the Live and neutral pins instead.

With that much coupling to half mains voltage, the tingling sensation produced can be somewhat unpleasant for many individuals. Reducing the coupling capacitance value down to the few dozen pF at most of 'stray' capacitance between a screening foil and the ELV output windings would mitigate this effect considerably.

Indeed, the foil could be connected via a class X 10nF cap directly to the wallwart's neutral pin to completely eliminate the effect safe in the knowledge that if it's plugged into a reverse wired socket, only the few dozen pF of 'stray capacitance' of the insulated screen to ELV winding will couple the full mains voltage at very high impedance to the output, generating a weak tingling sensation to safely alert the observant user to the fact that there is a fault in the house wiring to that socket or, if used, mains extension lead.

However, with class II kit, there's no guarantee that the neutral in the socket (or mains extension lead) won't be at full mains potential due to polarity errors in the socket/ring main wiring so a 'lesser of two evils' compromise is made whereby two series connected mains filter caps across the live and neutral pins is used to provide a high impedance half mains voltage connection that can act as a low impedance HF/RF connection to both sources of 'ground connection' in parallel. The only downside (it is, after all, a compromise) being the oft unpleasant tingling effect when lightly touching anything in galvanic contact with the wallwart's low voltage output.