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I haven't tried this, but you did initialize the disk in ProDOS? Since DOS 3.3 doesn't support 3.5" disks, You can't easily INIT a 3.5" disk with DOS boot code. The ProDOS boot sectors are trying to find the ProDOS files. There were some 3rd party utilities for using UniDisk 3.5 with DOS. They...

That's an interesting find. It will require a regular phone 25-pair to RJ-11 patch panel. It won't however fix your bridge's 12 machine limit, since that is caused by limited memory to store AppleTalk addresses. The Star Controller is a repeater with a management processor. It's not a true...

I used Eudora with OS 8. Don't remember which version.

Ow! You're not the only one who's moved a running gadget and let the magic smoke out, though. :I

You probably had power hooked up backwards if I read your post right. The early PB had a 2-contact "barrel" plug, center POS 24V, outside NEG. Wallstreets and later G3s use a 4-contact plug like a stereo headphone with an added outer shield like an RCA plug. The wiring on the plug is, TIP=ADB...

It's simple. Trace the wires from the write notch sensor switch and wire a toggle switch in parallel. When the toggle switch is closed, it acts as if the write sensor switch is closed. I have done this mod on several Disk II drives. I assume the UniDisk is similar, though maybe not identical. I...

You guys sure found a bunch of pictures of prototypes! Some of those are obviously very early, earlier than any I have seen. Now you know what a Mac looks like with a 5.25" disk slot (suitable for a CD drive). It would be cool to build a modern Mac into that Lisa chassis if you can't find parts...

One of the B&Ws I rescued had a top line (originally $1500) Voodoo card in it, and it was about on par with a Rage 128 in OS 9. No drivers for OS X. A sad disappointment. My B&W video card of choice is a GeForce 5200 flashed for Mac. It drives my (VGA 15-pin D-sub) B&W Apple 15"...

TOPS filesharing is a disk sharing arrangement for Macs, PCs, Suns, and a couple of other late 80s - early 90s filesystems. The protocol on the wire is AppleTalk, usually on LocalTalk wiring with PhoneNet connectors and TOPS cards in PCs. Each TOPS init is serialized, so you will need at least 2...

"The old 'fritter archives are down, so I can't access the research I did to determine that the Mac was designed around the 5.25" Shugart Drive, not the "Twiggy Drive," as is commonly ASSuMEd!" Since the Twiggy drive was the same size and shape as the Shugart 390 or the Alps copy that Apple...

The Twiggy era was 1982 and 1983. There was a net back then, restricted to military and research centers. The general public could not access it. You had to have an account on a research computer which you MIGHT be able to SLIP to from home with a dial-up modem and have a Unix terminal session...

If as you say, you have a working Lisa 1 with Twiggy disks and a bunch of blank floppy disks and system and installation disks as well as a ProFile, you have the best (possibly ONLY) setup of anyone in the world for writing a program to copy files from another computer to Twiggy disks. No one...

Me too. I ordered one regular size 256K from OWC and one low profile for the lower slot. When it arrived, the low profile had 8 chips, and the pair didn't work. However each chip worked by itself and was recognized for a full 256K, so I exchanged the regular module for another low profile one...

Join the club! It looks like the - end of C9 lifted off? Chances are that's connected to ground inside the board, which makes it easy. First, see if you can run a short thin wire from the hole in the board where the pad connects to the capacitor terminal. That's pretty easy. Alternately, measure...

If memory serves, a standard ROM chip doesn't just drop into the Mac 128, one pin needs to be jumpered for it to work. Easier and more certain to work if you have the genuine Apple chips. I think pin 1 of a 27C512 EPROM has to be lifted from the Mac's socket and a jumper wire run to pin 28...

Embellishment can be found here: http://www.macjams.com/song/65085

Speaking of PDQ RAM, if you order the low profile 256K stick for the bottom slot from OWC, you will need 2 of them, because OWC sends an 8-chip module which works when paired with another 8-chipper, but doesn't mix with a low-density 16-chipper. At least that's what I found with my 292MHz PDQ.

Sorry, the original artwork is lost. All I have is that old test tape. The first half of the sound track is recorded from the C-64 Epyx video game. The second half has some embellishment done in GarageBand. I can't take credit for any of the drawings. Those are done by Vince Collins and Donna...

Goodwill doesn't just smash them, they sort out the saleable or fixable ones for the store. They take the rest apart and salvage power supplies, hard disks, heat sinks, motherboards, video cards, etc. for resale in the third world. Dead parts are binned, plastic is separated from steel and...

Will it start up with just the keyboard? That will tell whether the mouse is bad or the ADB port on the Mac is bad. Do you have another mouse & keyboard? If it's the Mac, there is a fuse on the motherboard for ADB power, and that may have blown. If it's mouse or keyboard, the most common...