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Apple Lisa 2/5 interest check on possible sale.

C

Chromedome45

Veteran Member
Joined
Jul 6, 2009
Messages
3,993
Location
Central Florida
First off the Lisa is not quite for sale yet. Just want to see
what kind of offers I get for it. I know what it's worth and so
do most of you. So no low ball offers please.

And would highly prefer Local Pickup. If a deal is reached. But
might consider shipping but will be professionally packed. More $$$

Ok the Lisa is fully functional. Has 1 MB Ram and buffer RAM for floppy
controller were replaced. Has some yellowing due to age. Keyboard included
But no Mouse. Any Macintosh 9 pin type will work.

So Floppy works and ejects disks as it should.

Power supply is in good shape. Replaced caps where needed

Profile drive works as expected but the original power supply was not working
had a bad transformer in it. So it currently has 2 power supply bricks in it
to provide the -12, +12 & +5 volts. The AC good signal is derived from the
+5 volt line by way of a resistor. Sounds kind of kludgy but the drive does
work as mentioned already.

Currently the Profile drive has Lisa OS 3.1 on it operating system only. No apps
oh and it is a massive 5MB in size.

Pics will be uploaded later
 
Some Pics for your enjoyment!
 

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I'm sure that you already know that there is a current eBay auction 191770015553 for a Lisa 2/10 that does not power up.

Currently there have been 19 bids (12 by one bidder) and the current high bid is $1025.

smp
 
Last edited:
No I didn't. so maybe mine is worth more? Also the seller claimed original mouse. Original macintosh mouse maybe. Being that it runs and so forth. But unfortunately I only have one mouse and I use it with my Mac Plus. Hey thanks for the input smp!

Just checked it sold at $1025.00
 
Your machine would have more value if you gave it a retrobrite treatment to get rid of the yellowing. Cleaning up the sticker goo would help too.

As for the lack of a mouse, you might consider putting a fat warning label over the mouse port so a genius doesn't plug in a PC serial mouse and blow the thing up.
 
Just remembered the PC serial mouse is also female type connector. So plugging in a PC mouse would require a gender bender to allow it to be hooked up.
 
GiGaBiTe said:
Your machine would have more value if you gave it a retrobrite treatment to get rid of the yellowing.
Click to expand...
Maybe to some, but to me that would reduce the value. You don't know what other chemical changes are going to result in the long term after exposure to that process.

In my opinion, leave it yellow.
 
kb2syd said:
Maybe to some, but to me that would reduce the value. You don't know what other chemical changes are going to result in the long term after exposure to that process.

In my opinion, leave it yellow.
Click to expand...

Chemical engineers have described perfectly well what happens when retr0brite reacts with yellowed/browned plastics, it replaces the fire retardant bromine atoms with oxygen atoms.

Not treating yellow/browning plastics is the worst thing you can do because as it gets worse over time, the plastic becomes more and more brittle until just a slight bit of pressure will cause it to crumble.
 
GiGaBiTe said:
Chemical engineers have described perfectly well what happens when retr0brite reacts with yellowed/browned plastics, it replaces the fire retardant bromine atoms with oxygen atoms.

Not treating yellow/browning plastics is the worst thing you can do because as it gets worse over time, the plastic becomes more and more brittle until just a slight bit of pressure will cause it to crumble.
Click to expand...

Please cite a peer reviewed reference. I've read similar claims that RetroBrite will accelerate the deterioration of plastics. Until I can read a peer reviewed analysis of the process both claims null each other out.

Anecdotally, I have never had any yellowed piece of equipment deteriorate to the point of crumbling as you describe.
 
kb2syd said:
Please cite a peer reviewed reference. I've read similar claims that RetroBrite will accelerate the deterioration of plastics. Until I can read a peer reviewed analysis of the process both claims null each other out.

Anecdotally, I have never had any yellowed piece of equipment deteriorate to the point of crumbling as you describe.
Click to expand...

Agreed.

My biggest concern is that retr0brite is nothing more than a mixture of strong oxidising agents. These will oxidise bromine containing compounds (note it is NOT elemental bromine on the plastic) to something unknown; probably some form of bromous or bromic acid. These same oxidising agents will react in a limited but totally unknown way with the plastic itself.

Another problem is that you may remove any exterior coating on the plastic (i.e. as part of the moulding process) which was present to prevent degradation of the plastic. Several people have reported accelerated re-yellowing of plastic after a retr0brite treatment.

My point is that all plastics are different and without knowing the exact chemistry you will probably do more harm than good in the long run.

Personally I just apply a vinyl/plastic protectant (i.e. armor all) to my plastics whether they are yellow or not. The mild waxes protect the plastic for air/water oxidation and the titanium dioxide protects it from light/UV exposure. Plus it makes it look shiny and new again.
 
Chromedome45 said:
And would highly prefer Local Pickup. If a deal is reached. But
might consider shipping but will be professionally packed. More $$$
Click to expand...



I see your location as Central Florida. How far are you from Lake Mary. I'm interested in this but would need to have a good friend pick it up if I win. Do not want to take the chance with shipping this to California. Sorry for not sending a PM. I still can't PM.
 
About 10 miles from Lake Mary! Might be a snag. The person I got it from might want it back. I will advise. Sorry for late delay. Been busy. You have 39 post you should be able to PM me.
 
OK reviving this. I have the Lisa back and is for sale. See 1st post for details. Looking to get somewhere in the 950-1,000 range. But negotiable.
 
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