Re: TI994/A Power Supply

2019-11-15 Thread Fred Cisin via cctalk
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? On Fri, 15 Nov 2019, allison via

Re: TI994/A Power Supply

2019-11-15 Thread allison via cctalk
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

Re: TI994/A Power Supply

2019-11-15 Thread Fred Cisin via cctalk
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

Re: TI994/A Power Supply

2019-11-15 Thread allison via cctalk
On 11/15/19 7:46 AM, Jules Richardson via cctalk wrote: > On 11/14/19 3:02 PM, Jules Richardson via cctalk wrote: >>> I'm about 95% certain that it does NOT take line voltage in. >> >> Hmm, I'll see if I can find a moment to take it apart later. It's >> interesting that it's a boxed unit with a

Re: TI994/A Power Supply

2019-11-15 Thread Jules Richardson via cctalk
On 11/14/19 3:02 PM, Jules Richardson via cctalk wrote: I'm about 95% certain that it does NOT take line voltage in. Hmm, I'll see if I can find a moment to take it apart later. It's interesting that it's a boxed unit with a cord that fits - but then it does have three broken keys (caps are

Re: TI994/A Power Supply

2019-11-14 Thread Jules Richardson via cctalk
On 11/11/19 1:12 AM, Eric Smith via cctalk wrote: On Sat, Nov 9, 2019 at 1:46 PM Jules Richardson via cctalk < cctalk@classiccmp.org> wrote: I've got another /4A however which has a 2-pin plug on the back, and that one appears to just take plain ol' 110VAC line voltage and the PSU is

Re: TI994/A Power Supply

2019-11-11 Thread allison via cctalk
On 11/11/19 2:12 AM, Eric Smith via cctalk wrote: > On Sat, Nov 9, 2019 at 1:46 PM Jules Richardson via cctalk < > cctalk@classiccmp.org> wrote: > >> I've got another /4A however which has a 2-pin plug on the back, and that >> one appears to just take plain ol' 110VAC line voltage and the PSU is

Re: TI994/A Power Supply

2019-11-10 Thread Eric Smith via cctalk
On Sat, Nov 9, 2019 at 1:46 PM Jules Richardson via cctalk < cctalk@classiccmp.org> wrote: > I've got another /4A however which has a 2-pin plug on the back, and that > one appears to just take plain ol' 110VAC line voltage and the PSU is > completely internal (at least, there's a power cord with

Re: TI994/A Power Supply

2019-11-09 Thread Jules Richardson via cctalk
On 11/4/19 7:39 AM, Allison Parent via cctalk wrote: Do better research. The power is external transformer and internal low voltage switch mode power supply. It seems to depend on the variant. I've got a /4 and a /4A which have 4-pin plugs on the back, and these use an external PSU outputting

Re: TI994/A Power Supply

2019-11-04 Thread Allison Parent via cctalk
Do better research. The power is external transformer and internal low voltage switch mode power supply. Having carts is good. The bonus is an expansion box with floppy and cards. FYI back when ratshack sold both. Allison IPhoned it in! > On Nov 4, 2019, at 12:59 AM, Kevin Parker via

Re: TI994/A Power Supply

2019-11-04 Thread Will Cooke via cctalk
> On November 4, 2019 at 5:12 AM Liam Proven via cctalk > wrote: > > On Mon, 4 Nov 2019 at 06:59, Kevin Parker via cctalk > wrote:>>> These voltages appear to neatly align with most PC power supplies > so Ishould be able to tap into an old AT power supply of which I have quite > afew.The PSU

Re: TI994/A Power Supply

2019-11-04 Thread Liam Proven via cctalk
On Mon, 4 Nov 2019 at 06:59, Kevin Parker via cctalk wrote: > > > These voltages appear to neatly align with most PC power supplies so I > should be able to tap into an old AT power supply of which I have quite a > few. The PSU apparently outputs AC, not DC, which is unusual... but a PC PSU can

TI994/A Power Supply

2019-11-03 Thread Kevin Parker via cctalk
I may be stating the obvious here but looking for a little advice and reassurance from anyone on the list who may have had experience with these machines. I have a couple of TI99/4A's that I was given quite a long time ago along with about 50 software cartridges (if I understand things correctly