On 11/15/19 1:29 PM, Fred Cisin via cctalk wrote: > On Fri, 15 Nov 2019, Jules Richardson via cctalk wrote: >> OK, the cord "fits", but having looked at it now I'm not at all >> convinced, either. The two-pin socket is actually the same as the >> four-pin socket on the other two machines, but with the upper two pins >> (intentionally) missing. >> The PSU board inside appears to be a switcher, but I'd be inclined to >> agree with Allison that it's intended to run from low-voltage AC (I've >> put the machine back together now, but just realized that I should >> have checked the voltage rating on the rectifier stage's caps). > > If somebody found a mains cord that "fits" and plugged it in with the > low voltage AC input connected to the wall, then it might not be happy now. > > You might want to avail yourself of some of Allison's expertise. > Might I suggest a box of 8" floppies for XMAS? > >
Omph, Its close enough to the Early HP detachable cord and yes if thats done (could not scream nooo loud or fast enough) the result is both load and spectacular. I forget the ideal voltage though. The only transformer are ones floating loose are the 4pin plug versions. But there are TI 99/4A sites on the net with all that. I have a crate of 8" used and a box or two of NIB. They seem to last if they don't say noname or Memorex blackwatch ;) I use them more for RX01/02. Allison