Re: [Kinda OT] Power Supply

[julian814@hotmail.com (Ralph Glatt)]

Richard Kilpatrick <delorean@NOSPAMbtconnect.com> wrote in message news:<BD47F758.BE90%delorean@NOSPAMbtconnect.com>...
> On 17/8/04 5:28 pm, in article
> ce9c44dd.0408170659.516c726b@posting.google.com, "Ralph Glatt"
> <julian814@hotmail.com> wrote:
> 
> > The ZX81 takes a power supply that puts out 9v DC around 800 mA. I
> > needed one, and a friend gave me a 9v AC power supply and said use
> > that. Thing is, I'm afraid if I use the wrong kind of voltage, I might
> > fry the board, which I don't want to do, because the ZX81 isn't all
> > that easy to get in the US. Should I try it, or should I keep looking
> > for a DC power supply?
> 
> DC, for god's sake. 9V AC is going to fry that poor thing. Centre polarity
> would appear to be positive with some quick Googling.

Okay, thanks, that's what I thought. I knew it had positive polarity
on the center. I'll just give his power supply back to him.


Ralph Glatt