I bought one from Amazon for $9.99 with free (but not Prime) shipping. It took about a week or so to arrive; not too long.
It comes with an 8" or so adapter cable. That cable reverses the polarity. Nice to have, but not for the Model T's. My usb volt/amp meter shows that there is 5.10 volts going in and my dmm shows a no load voltage of 6.25 volts. It operates my M200 just fine using my ipad wall wart. I have not tried running it off of a usb port. I suspect that some will work, some may not. It is enough for me that I now only have to carry an extra cable and not an extra wall wart. I should mention that it also runs fine off my 2.1 amp car wart (so to speak). Hope this helps. As always, YMMV. David, WA7ZYQ On Tue, Jan 12, 2016 at 2:31 PM, Kurt McCullum <[email protected]> wrote: > Thanks John, > > I'll check it out. > > Kurt > > > On Tuesday, January 12, 2016 1:30 PM, John R. Hogerhuis <[email protected]> > wrote: > > > > > On Tue, Jan 12, 2016 at 12:50 PM, Kurt McCullum <[email protected]> > wrote: > > John, > > That's quite a find! 6v center negative from a USB source. Nice! Any idea > if they will make them available for purchase? > > Kurt > > > > The seller is on Amazon called "MyVolts." > > I imagine we could buy a box of them if there's interest. My contact said > they intend to make the product available on Amazon US but no indication of > when that's going to happen. > > That said the cable is already easily available via Amazon UK for any UK > members. MyVolts sells several cables in the U.S. but on the U.S. site they > label them as being for specific devices and don't give the actual > specifications. So it might be available on the U.S. site, I just can't be > sure which cable is which! > > Maybe if some other members ask in the comments on the Amazon UK site > they'll get on top of it and add the cable for U.S. > > -- John. > > > >
