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AppleTalk has profound problems determining whether to use ethernet or LocalTalk. In ye olde days, AppleTalk had to use the Printer port and there was no option to change it. AppleTalk cannot even look at a multi serial port board. In ye olde days, third party manufacturers made boards with...

That was MORE than enough information, Trash. But thanks a lot for the photos that show the Radius branding. I am coming from a UK perspective and Radius didn't have much presence outside graphics shops or science. Radius was not a brand name that monitor purchasers would have recognised in...

Cough, Apple IIe Workstation Card.

The Mac TV was not sold over here in the UK so I am completely ignorant. What PSU does it use?

If it starts to boot, the PRAM battery is unlikely to be your problem. It looks like you have a faulty PSU or that something in your 475 is sucking up a lot of power on boot. Have you tried booting from floppy disk? Edit: Isolate the problem. Fit a new PRAM battery.

Trash wrote: Give us a hand then. My notes about the end of Radius: The price of diversification was loss of focus and Radius were in trouble financially from late 1992 onwards. Radius fizzled out rather than ending abruptly. The SuperMac brand name was licensed to Umax for its range of...

I guess that we are all right and all wrong. The eras described below are very approximate and experience would vary depending on whether you bought PC junk or not. Early 386 and prior: Cylinder Head and Sectors needed to be entered manually most of the time. Automatic CHS identification was...

I am presuming that 8bitbubsy is smart enough to spot the mistake. Smart enough to question what is on the ROM. Is there anyone out there with the desire and kit and ability to read an Apple disk identified ROM?

If you don't have the cable, try mounting a 3.5" ProDos image in MacOS. There are a bazillion options (I exaggerate, probably three) to do that. See also the cable options that I posted years ago: http://www.vintagemacworld.com/lc_card_faq.html You can make your own cable or you can assemble a...

The quality of contributions on this thread is brilliant. I doubt whether there is a perfect answer to the question "does this CPU card work" but there are a lot of intelligent answers.

There was a top tip in that rant, Jeff. For lots of drives the BIOS parameters are on the label on the top side, so write them down before you install the disk. Then write them down in that exercise book that you use to record all of your installation procedures. Auto hard disk detection was...

Trag I've used two and three chip 32 pin SIMMs from c. 1990 in Macs with varying success. For obvious reasons, I used 1MB SIMMs when testing 68000 compacts. The LC and LCII seemed happy with two and three chip 32 pin SIMMs of different sizes. The Plus and SEs that I tested hated two and three...

This question needs to be reworded. It is not about particular Macs but about particular video cards, which may or may not be built-in. Ability for a video card to work with a monitor (assuming that it accepts analog input) is based on the following: * Sync on green is weird, but it is the...

Yes, try to find an Apple TPD to go with that. Keep the Apple Color Monitor but add an Apple Workstation Card (that's the one for the TPD) or a suitable third party card. The TPD is important because so much graphics work is/was based around A4/US Letter in portrait layout. You would have...

For people with an accelerator -- 68030 50MHz or 68040 -- Mac OS 8.1 is a realistic option, so 32 bit clean ROM is also useful. Combine that with a colour graphics card and ethernet and fast disk, which is where Gamba was heading, you have a nifty compact Mac.

From my notes: *** Orange Micro 386 and 486 NuBus Cards The Orange386 card was launched in early 1991. The card has a soldered 386SX processor running at 16MHz or 20MHz with a socket for an optional 387 fpu. Four SIMM sockets are provided which must be filled as pairs, using 256KB, 1MB or 4MB...

My adventures were my adventures. Somebody smart will always spot a way to abuse the Orange NuBus cards in ways that I failed to imagine. The later DOS/PC compatibility cards have oodles more functionality. Getting them to run at all or to run them on an unsupported system can give an...

The horrible disk problems that you describe are consistent with how that generation of Mac OS works. Let's say that there is 20KB free on the system disk and you wish to save something on a separate data disk. That cannot be achieved if the save operation (by the OS) needs to write 21KB or more...

I'm intervening late in this thread but I'll say thanks to Gorgonops and Trash for their thoughts. In order to understand or reverse engineer how a Twiggy 128K might work, you need to have a workshop like the one that existed at Apple at the time. To recreate it, you need a selection of...

AST/Orange PC cards for System 6: The AST 286 and Orange versions should work fine in a System 6 Mac II. They are very limited, but that is a challenge in itself. The Orange NuBus 386 card -- perhaps not all versions -- is the one with an ISA slot which I used for my experiments here...