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The repeated diagnostics is bad. It should stop and hunt for a disk in the drive, and stop with "RETRY" on the screen. It's finding something wrong. On the other hand... all of these machines need TLC to keep them running. You would need to pull and reseat all the chips to make sure they're...

Either the power supply is bad or there's an electrical short in the machine somewhere. Start by pulling every single thing that's plugged into it, out. All cards, all cords, everything but the power. If it still doesn't work - it's most likely the power supply.

Depending on your modern computer, download and install and emulator: PC: http://applewin.berlios.de/ Mac: http://www.virtualii.com/ http://www.sheppyware.net/software-mac/sweet16/ then you can basically double-click on the .DSK image you have downloaded and see how it behaves.

How does the game behave in an emulator? Maybe the disk image(s) you are working from is/are bad?

Unplug everything but the monitor and the power. Take a good look at the power supply - is it rated for 110VAC? Does it turn on for any longer length of time without any peripherals attached?

You do need to have the 5.25" disks at the end of the chain, but you say you've tried just chaining the 3.5" drives together with no 5.25" drives at all. Hmmm. That should work. What are the model numbers of the 3.5" drives? References here: http://www.vintagemacworld.com/drives.html

Where'd you get your tetris image from? We can try it too. And you could try it in an emulator as well.

Yep, I use it (mostly for the assembler at the end of the toolchain). There's extensive doc available, but there are some basic things that might be escaping your notice - like the startup address or target OS (ProDOS vs. DOS). See this post, for example. Also see this post for a good "Hello...

You could use any terminal software - the old xmodem/ymodem sorts of stuff would work. The options on the two endpoints are limitless. ProTERM seems to be a good alternative on the GS end: http://lostclassics.apple2.info/downloads/?dl_cat=10 Or, if you're already connected via null modem -...

I experimented with the image a little bit. It looks like the disk trashes itself somewhat after you first play it, as far as I can tell. While AppleWin can continue to work with it, neither Kegs nor Virtual ][ will. Nor will your real hardware, as you found out. This is the work of John...

It could, but is more likely to be a dirty read/write head. Testing the drive speed involves getting a testing program to read from disk (kind of chicken-egg situation for you now), or roughly with a fluorescent light. So I'd start with the head. Take the IIc apart, remove the top of the...

Read through the messages in the threads - there are explicit parts listed. It needs to be much beefier than the one you pointed to. (Look for the X2 designation, as I remember...)

Even though yours didn't explode, it's likely the power filter capacitor that released its magic smoke. have a read through this: Apple ///: burned Power Supply and this: Apple III power supply capacitor replacement

Latest ProTerm is here: http://lostclassics.apple2.info/downloads/?dl_cat=10 and they explicitly ask that it not be mirrored. It'll take some doing to get it from .shk format into something an emulator will be able to use.

No native /// software runs on any II of any stripe. Even though SOS and ProDOS are related and have a lot of similar calls, the calling mechanism is different. BASIC is different (Apple Business BASIC for the ///, MS or Woz BASIC for the II) and all have different tokenizations. One...

It really is a very Jobsian/Mac-esque feature. Kind of like the "breathing" light on my iMac when it falls asleep. One of those little creature comforts that is subtle, but sets it apart.

The hardware, specifically memory control and several other I/O aspects were different on the /// than the II. The emulation code (actually collaboration between hardware and software) conspired to make the machine look, feel, and smell like a 48k II+ with several of the hardware resources...

Good point - it would need to be able to address all 4 drives. A little hint of an adapter is mentioned here: http://news.altair.com/mailman/htdig/apple3-l/2004-March/000039.html Love the racing stripes! :-)

There is a little bit of info on the Disk III and its use on a III+ here: http://www.vintagemacworld.com/drives.html but as for the Disk II, vintage photos show Apple employees with Apple III's with Disk II's hooked right to them (i.e...

I don't know about that. The pedigree of Apples was basically that everything was backwards compatible. You could always go backwards (i.e. an adapter card was compatible with every machine unless it was built for a specific model... aux slot, mem slot, slot 0, etc.), but if you had an older...