3 Jun
2005
3 Jun
'05
11:43 a.m.
I plan on trying to remove the marker from the back of the film with
isoporpyl alcohol. My backup is that I can replace the film and I will store
the old one in the packaging that the new one is sent in.
The new film, although computer-generated, was derived from original
photomask by Todd himself or by one of his team working with a local print
shop. I'm pretty certain that it will be indistinguisnable from the original
as it's being sold as a "new replacement part for the original IMSAI".
For $20, it's worth it. I also plan on ordering the replacement 3/16"
Plexiglas front for $8. The existing one is in great shape, but it can't
hurt having a spare. The red filter looks to be in good shape.
-----Original Message-----
From: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org]
On Behalf Of Dave Dunfield
Sent: Friday, June 03, 2005 2:20 PM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: RE: IMSAI Score update/Spare BYTEs/Got an Altair too
I don't recall using the verb "attack" ... if he's lucky, the marker
used
was
a soluable one, and it will clean up nicely with no damage to the original
strip - if you can do that, then why not clean it up and keep it all
original.
As Rich noted in a later message, the replacement he can get is not
identical
to the original...
Have you never cleaned up a computer that you really wanted to restore to
original condition?
> >OK, I pulled the front panel appart tonight
and I found out that whoever
> >owned this model colored the silkscreen with magic marker. Bogus!
> >
> >Anyway, I can get a new photomask from Todd Fischer for $20. Well worth
> >it.
>
> I was afraid of that ... Although it's good that you can get a
replacement,
> keeping it all original has merit as well -
depending on the marker used,
> you might be able to carefully remove it. Try a Q-tip with some
whiteboard
cleaner and
move up to stronger solutions as required.
Oh for ****'s sake.
How is cleaning off the ink any different from replacing the strip? You
just said, "keeping it all original has merit as well". I guess attacking
it with whiteboard cleaner is not considered a modification to the
original? Like sane people do, note down the modification and
keep the note with the
system (use a tagged string so you can tie the tag internally to keep Dave
happy). Put the original in a safe place (which is I'm sure what Rich
planned to do).
Obviously any cleanup should be attempted with great care, and if it's not
going to work, then by all means get the replacement, and keep the original
in a safe place.... but that doesn't mean you shouldn't at least investigate
restoring the original first.
Sheesh.
Here we agree (although from different viewpoints :-)
--
dave04a (at) Dave Dunfield
dunfield (dot) Firmware development services & tools: www.dunfield.com
com Collector of vintage computing equipment:
http://www.parse.com/~ddunfield/museum/index.html