Re: wtb: original apple ][ broken as-is for parts

["Michael J. Mahon" <mjmahon@aol.com>]

Tristan Mumford wrote:
> Michael J. Mahon wrote:
>
>
> > Tristan Mumford wrote:
> >
> > > Liam Busey wrote:
> > >
> > >
> > >
> > > > Tristan Mumford wrote:
> >
> > > > I'm not after you rotten ][. My moldy ][+ would get jealous. ;)
> > >
> > >
> > > I got given the ][ in '99 (i think) after a cheap secondhand notebook I
> > > purchased violently exploded. Ex Telstra equipment. They replaced a NiCad
> > > clock battery with a big lithium. As we all know they don't like being
> > > charged.
> >
> > Ah--"murder by repair".
> >
> > That's the price of not learning history (or looking it up ;-).
> > Your service tech clearly didn't "get" NiCads.
>
>
> It was a shame. It was a nice little 386 notebook. The force was enough
> to 'percussively desolder' some of the components, rip the case apart
> (metal shields included), and utilise the keyboard as a makeshift mortar.
> It also took a chunk out of the table 2 layers deep on a 9 ply board.
> Then there was the horrible, thick white smoke that filled the house.

Wow--I've always wondered what one of those little lithium cells
could do...  ;-(

> > > > Well there are masked ROMs, a character generator, and a keyboard
> > > > encoder but those can all  be worked around.
> > > >
> > > > The biggest issue with the II/ II+ is that for some reason Apple
> > > > decided to socket ever single chip on the motherboard (IIRC ~120
> > > > chips). While on the surface it may seem to be very convenient for
> > > > repairs, every one of those sockets is a weak or intermittent
> > > > connection waiting to happen. On a well kept machine this is no
> > > > problem. On a machine that's been sitting in someone's basement for 25
> > > > years, well .... AARRGHHHHH!!!!!! Tarnished chips and sockets are a
> > > > PITA!
> > >
> > >
> > > Try a leaky shed for 6 years.
> > > I'm going to do a reseat anyway.
> > > The main issues are the floppy drives and a blown resistor on the
> > > mainboard. The floppy drives instantly scratch the life out of disks. And
> > > as for the blown resistor, I don't recall where it was. I just know it
> > > made operation a little unstable.
> >
> > Leaky shed for six years opens up a lot of possibilities!
>
>
> Apparently leaky shed with rats too. Hmmm.

Now I have to put out my mind's eye...   ;-)

<snip>

> > > Latest stupid idea:
> > > Apple2 on wrong end of house to connect using wired network easily. Why
> > > not USB bluetooth?
> >
> > I thought Bluetooth was for a room or two, not whole houses...
>
>
> As Marcus said the class 1 devices are good for 100m maximum. I made sure to
> grab one with an aerial. I like aerials.
>
>
> > But with all the neat wireless stuff we have these days, it would be
> > cool if someone would use them to connect an Apple wirelessly...to
> > a modern machine or to another Apple II.  ;-)
>
>
> Thats why I said bluetooth. There's a few reasons:
>
> * It's cheap
> * Ad-Hoc networking is a great idea IMHO.
> * One less cable to trip over.
> * It's cheap.
> * low power consumption.
>
>
> > I've thought about a wireless link for NadaNet, but I need a few hundred
> > kilohertz bandwidth, and that seems either UHF/microwave or illegal.
> > (I also need a pretty noise-free channel...maybe infrared...  ;-)
>
>
> I know in Jaycar they have (some really high frequency) radio transmitter
> and receiver modules. Perhaps something like that. I guess that's an option
> too.

I've also been intrigued with Zigbee (the PHY and MAC layer, not the
protocols--I'll stick with NadaNet protocols ;-).

-michael

NadaNet networking for Apple II computers!
Home page:  http://members.aol.com/MJMahon/

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