The machine (240 V Classic - not II) has not been switched on for about 4 years and appears dead. I have opened up and can see the voltage on the inside of the mains switch but I …

The G3s have "Zoomed Video" connections on one PCMCIA slot, whatever that is. Normally it's for a DVD decoder card. :scrambled:

Back in 2006 when the 128MB DIMM I had in my iMac died, I booted it once or twice with the original factory 32MB of RAM. It took somewhere around 15 minutes for Jaguar to boot, and…

The Apple II uses a 14.31818MHz crystal (4x color burst) which gives it the ability to generate pseudo-color video on a TV. Click to expand... And so did the original IBM PC, i…

Everything in a Plus runs off a single crystal which was chosen for compatibility with the SCC chip and standard baud rates. If you change the crystal, the Mac may beep and start, …

15.6+- khz is the time it takes to produce a single line on a NTSC tv, so the apple screen is probably really running at or near ntsc tv specs Also it was very common in the 80's t…

Haven't played with it yet. No space on the bench to set it up. Leopard. Now there's a thought. I have a pre-loved 10.5 DVD, but I don't think the machine has the RAM. It'd be …

I can tell you that it very seldom works on a Wallstreet.... Resetting the battery can be done in Open Firmware, I gather, on a Pismo. Mind you, it hasn't worked for my Pismo's de…

Congrats on the iBook! I've always wanted to get one of those myself.

Nice, I have always wanted one of the brighter colors. I got my 2 from my school, Blueberry and Graphite. Clamshell's are the coolest design ever. Click to expand... If I wasn'…

What was the reason behind the odd clock speed? Click to expand... It divides evenly (ie by integer) to generate baud rates. But I imagine the pixel clock was an important reas…

15.6+- khz is the time it takes to produce a single line on a NTSC tv, so the apple screen is probably really running at or near ntsc tv specs Also it was very common in the 80's …

Everything derives from the same clock. The frequency from the oscillator is divided in half for the processor and further for other IC's. The full clock speed is fed to the video …

If I were to swap out the oscillator, would it potentially damage the Mac? I doubt the .1664 MHz jump would hurt anything, but I want to make sure first. Click to expand... Ser…

There's also Apple's own LocalTalk Bridge software Click to expand... Yes, but it doesn't provide the MacIP gateway. Click to expand... Actually, After some searching arou…

I am working on a project with my Plus. The analog board is dead and while I do plan to fix it, I want to play around with a microcontroller. Anyway, One thing I'll need the microc…

The Mac II onwards were designed to use NuBus bus mastering for high speed data transfers. Both devices had to be on the NuBus, of course, and support bus mastering, at least as a …

Awesome! i loved those things. I used to have one. Try to find the floppy drive (and accompanying disk) that gives you 100KB floppy storage on a modern floppy. The floppy also ru…

Well, the thing went BANG, and my house RCD tripped (at least it tested that...), a nice smell of burning electrics coming from the power supply followed... Click to expand... …

Depends what condition it's in when it arrives. This will be my third CC. I would like to keep one stock, or stock-ish (ie a LC550/CCII motherboard swap, at most), and reserve th…

As far as I know, the first Mac to actually have DMA (which the very first IBM PC had) was the IIfx and it was only used under A/UX. Click to expand... The Mac II onwards were …

1) External drive must supply termination power (the power supply in the Plus is too feeble to do the job, so the design team decided that the external box should supply term power…

Out of curiousity... have any of you ever used BatteryReset 2.0 on a Lombard? If so, were you successful at fixing a battery? I've got a Pismo and a battery that refuses to take a…

Too much paste is worse then none at all, even a little that gets stuck on the cache leads will short out a chip. Click to expand... yea if your using lead paste, ive never see…

about a year ago i purchased a trs-80 model 100 at a garage sale for $3. at that time i thought that it did not work. today i took it out, plugged it in, adjusted the screen resolu…