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You're right. It's a Kodak / Sayette datashow pad connector. It was a very common mod in the day. If you open the Mac, there will be a little video daughterboard in there connected to the socket.

It doesn't seem that long ago to me that the Classic and LC were "The New Models"...

These were quite common around 1994-1996. There were quite a number of companies selling the cases and it was up to the buyer to source a suitable 2.5" SCSI drive. Often people would put an old PowerBook drive to good use after upgrading the PowerBook to a larger drive. As register said...

Yes... what he said ^^^. My Mac Portable was left turned on, displaying basically the same image when it wasn't in use for (literally) a couple of years. After a few months, the black pixels would start to remain black - in other words, I'd drag a window and its outline would remain at the old...

Have you considered running Netatalk http://netatalk.sourceforge.net/ on the Linux host? Netatalk is pretty old now, but was commonly used in the heyday of System 7 to make Unix hosts "look" like AppleShare servers. I run it under FreeBSD to allow transparent file sharing between my Windows...

You could always go solid state with Compact Flash. It's nice and quiet, plus extends the battery run time a bit. See my photo in this post: http://68kmla.org/forums/viewtopic.php?t=4477

AppleCat supported Macs between the Mac Plus and the LC/IIsi/Classic, if I recall correctly. The 128, 512 and Plus were not supported, probably due to a lack of space in ROM. The Classic and so on were catered for via the TechStep. AppleCat was only available to Apple Service Providers.

MacMan gave an excellent answer, but if you still want more information... The older Macs had various diagnostic programs in ROM. In many situations, a faulty Mac would not boot and could not use its display to tell you much about the fault. The TechStep plugged in to all the ports on the...

It's interesting that you're having problems with the auto-inject drives. I used to find them quite reliable. I couldn't say the same for the manual-inject ones though! One thing I have found that is "weird" about Mac floppy drives is that when you format a disk, the Mac always seems to take...

I used to like some of the Mac viruses (virii ?) - they were more jokes than the evil, scary things that get around in the Windows community nowadays. nVir, I think was one that would look for Macintalk (software speech synthesiser). If the virus found it, a voice would come out of the Mac at...

Old, slow, clunky... the colour lasers of that vintage are always needing some consumable or other replaced. Unless it comes with a cupboard full of toners, transfer units and so on, I wouldn't bother spending any money on it.

Roland (yes the musical instrument people) used to make a range of plotters for Macs in the 1990s. They were connected via the serial port and were moderately popular at the time. x2 re the HP designjet / paintjet range. Weirdest plotter I came across on a Mac had a small cutter instead of a...

You need 3 x lead acid cell. Each gives 2v, for a total of 6v. The size and physical configuration of the PowerBook 100 battery pack make repacking it quite tricky. If you just want to get the PowerBook going and don't really care about looks, you could use three of the "Gates Cells" like the...

A couple of classic games that I recall: Battle Chess and Crystal Quest !

First I've heard of it. I don't remember seeing a lot of 800k drives with the upper head ripped off in those days. Sure, there was the odd one here and there, but I put that down to rough handling and disks with jammed up shutters. Along similar lines, I recall Apple sending out a warning to...

My understanding is that the number of read cycles for flash is unlimited, but a single memory location can only take between 100,000 and 1 million write cycles. The number of cycles depends on the manufacturer and the specific technology used. The better quality CF cards implement "wear...

The DIP switches should be set as follows for a Mac: Bank1: (from 1 to 8) where 0=off, 1=on and x= don't care 0, 0, 0, 0, 0, 1, 0, 0 Bank2: 1, 1, 0, X This sets it for 9600 baud, DTR handshaking (it's bank 2 that's critical, bank 1 deals with character set, font styles and so on) Your...

The processor is on a daughterboard, so it is practical to upgrade to a 540 (or a 540c [:D] ]'> ).

Do you have a tcp/ip application open on the Mac Plus? I have a feeling MacTCP doesn't actually load the IP protocol stack until an application requests it.

I have one here, but since I use a proper router these days, it's been a long, long time since it was used! Are you using coax ethernet or 10Base-T ? There's a little switch next to the coax connector that needs to be set appropriately. Also, I don't recall testing one of these with a 10/100...