TI994/A Power Supply

[allison]

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