From: Bo Zimmerman (bo_at_zimmers.net)
Date: 2002-10-10 04:50:39
Well, it turns out they have a web site!
http://www.altex.com
Unfortunately, those transformers are not on their online shopping cart.
Might try emailing them, if you are curious. They used to be a great place
for tinkerers, but about 2 years ago, they turned more towards consumer
electronics with only scant tinkerer support. Luckily we still have
Tinkertronics here in Austin -- the only place I can still get
perfect-fitting C= User/IEEE port female edge connectors from standard
stock!
- Bo
> -----Original Message-----
> From: owner-cbm-hackers@cling.gu.se
> [mailto:owner-cbm-hackers@cling.gu.se]On Behalf Of Marko Makela
> Sent: Wednesday, October 09, 2002 1:40 PM
> To: cbm-hackers@cling.gu.se
> Subject: Re: Bugs in Commodore calculators
>
>
> On Wed, Oct 09, 2002 at 09:59:03AM -0500, Bo Zimmerman wrote:
> > Regarding the SP9000, have you replaced the PS already, or are
> you using a
> > simple transformer?
>
> I tried it yesterday with my friend's transformer, a small brick that is
> plugged directly to the wall outlet. It is maybe 2 inches by 1.5
> by 1.5 or
> something like that, and I wouldn't dare to drive it at its maximum rating
> (50 watts) for a longer period, as it gets mighty hot very
> easily. At over
> 70 watts, the SP9000 was almost 50% overload.
>
> > There's an electronics shop here in town that sells 300W (and higher)
> > 110<->220 step-up/step-down transformers for about $25.00.
>
> That's a simple transformer with 2:1 winding ratio, right? The
> price doesn't
> sound awfully expensive. Having their contact info doesn't hurt, although
> I have at least 3 friends who could lend their transformers to me.
>
> I think I will move the SP9000 board to my 8032-SK or 8032 (once I get the
> latter back from another friend of mine). My 8032 has an
> interesting daughter
> board that could be a 64k expansion. I'll make a picture of it as soon as
> I get the machine back (maybe in a couple of weeks, I don't have a car).
>
> Marko
>
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