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I snagged this SE/30 off of eBay with a video problem (there is no video).  The back shows a possible Micro Xceed card but it is unlikely to have the internal gray scale.  The I think, maybe the gray scale CRT board fell off of the CRT neck.  Wishful thinking.  A question I do have is if the...

Yes,  the "black plastic sheet" is actually a dark gray cardboard/fiber analog board protective cover.  As noted, this was on the very early Mac 128ks.  The white plastic sheet came later.

Just to end this off, it came with a Mac Plus bucket, Mac Plus motherboard and an 800k drive with new drive mount.  It also had a zip tie that ties the motherboard to the side frame which I thought was not normal.  The zip tie had a label that was dated 1988 which I assume is when it was...

SE30_Neal, take a look at this: https://www.lebow.drexel.edu/news/when-mac-came-market-street

I understand the point you are making and I can assure you, I go both ways.  I would never touch a Mac 128k with Hyperdrive or even some of the accelerators in the other compact Macs because it provides some lineage to the computer and the honest upgrade that people went through to make these...

I have a few original Mac 128ks.  In this particular case, I was the person who bought the recent Drexel Mac upgraded to a Mac Plus here.  I'd like to restore it back to stock as close as I can.  I hope that makes a little more sense? 

I don't yet have it but I will check it out when it arrives.  I will be restoring it back to a 128k so I am hoping it has as many original parts as possible.  It will be a long wait :(   Thanks for the replies.

Please see pic above.  Some people can tell by looking at the drive through the opening.  I am thinking this is upgraded to 800k.

Floppy drive too?    I would guess it would go from a 400k drive to an 800k drive?  Does this look like a 400k or 800k drive?

I know this is a basic question but when a Mac 128k is upgraded to a Mac Plus, what gets replaced?

Finally scored a 128k Drexel Mac.  Very happy camper here.

It is an internal interface board that converts the capacitive glass plate touchscreen to ADB.  This is the board inside that is stuck to the power supply with stand-offs and two-sided tape.  It takes power from the motherboard connector.  The 9 pin D-sub connector is from the touchscreen and...

Finally restored my SE/30 with touchscreen.  Though some might like to see her working... https://youtu.be/DF-Je337sFo

Take a look at this thread.  There is a link to the ROM files in there.  I found this AFTER I asked my question.

Awesome.  This is a great picture of everything that a tech might have had.  I just grabbed a Techstep off of eBay a couple days ago: https://www.ebay.ca/itm/292672465770 so I'll see what all comes with it.

Has anyone tried to open one of those cartridges?  Maybe it's not much more than an EPROM and it can be read?

What a great read and good pictures too!  I have a couple of HyperDrives that need some work too. I'll have to pull them out when I get some time.

Bought a lot of Mac ROMs.  I know what most of them are but I don't know what the lone bottom ROM is for.  Does anyone know?  It's marked 820-0431-01.

For the plastic disk replacements, I used old overhead transparency sheets and double sided tape.  I punch them out with a 7/8" punch.  The two sided tape is a little hard to peel the paper off of the one side but it works well when you are done.  Might give you an idea if you don't want to use...

This is what I use.  It's a TV degausser and I have used it on two Mac Color Classics but it was blotchy and wasn't similar to yours.  Might work still but I don't have experience with what you are seeing.