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Yeah, bi-directional scanning got you a ragged picture that was ssllooowww, instead of sharp and sssslllloooooowwwwww. Make it 15 minutes to scan 8x10 inches instead of half an hour. Thunderscan really needed to index on a piece of white tape you wrapped around the left end of the printer's...

There are 2 versions (at least) of the 17" acrylic display, one with the clear video cable and one with the white cable, as well as other differences like graphite or silver Apple logos. They have different firmware, so some respond to USB on a Cube, some don't, and some are even more weird with...

A PDQ with RAM maxed out does take a long time to boot. Enough to make you think it's broken the first couple of times. However, with 512K you can reasonably run Tiger on it if you are so inclined. I did for several years. Now I've retired mine to OS 9 translator service, as a handy machine to...

It seems odd to think of repair kits for early Macs, considering that 5 years ago you couldn't give one away, and Goodwill had stacks of them for $5. At the time I figured there were enough of them that like Model T Fords, there would be plenty to go around for the next 50 years and they would...

Yep. Micron went looking for places to sell their RAM, and video cards back then were nothing but lots of RAM and a DAC/CLUT chip.

Posted an animation test for a video done entirely on an Apple //e. There's also some new stuff in the music section. http://web.me.com/henryspragens/Apple-II/Apple_II_Graphics/Apple_II_Graphics.html

The 4MB limit is imposed by the SE's ROMs, so no accelerator fixes that. As mentioned, an SE30 board which uses Mac II ROMs allows more RAM. That's why every old Mac enthusiast has an SE30 around someplace.

Nothing against Idaho. Like any startup, Micron had teething problems. Potatoes to RAM still seems like an odd segue, but Micron Semiconductors certainly made it.

Multiple chip failures are fairly common. What kills one is likely to kill another from the same batch, ie. they are likely to have the same bad spot on the die as the mask is stepped across the wafer. As for dying in storage, it's common for the analog section to drift as aluminum capacitors...

The original /// had a problem with the RAM module which plugged into the motherboard with the cheap tin-plated pins and sockets common at the time oxidizing, as well as chips walking up out of sockets. It did get pretty hot inside the case, since there was no airflow, and that aggravated the...

Having done a couple hundred 128K upgrades, the soldering is not extremely difficult. Cut the legs off the bad chip with a small nose wire cutter, then heat each pin from below and pull it out with needle nose pliers. The corner pins which connect to the power and ground planes inside the board...

I use FWB with a Yamaha CD burner on System 7 as a CD-ROM. Toast on later systems as a CD-RW.

I saw that scanner. So you bought it! It's kinda neat to watch it go - once or twice. It's sssllloooowwww, since each scan of the "printhead" only picks up a single line of pixels. I have one along with my old Imagewriter around here somewhere. Wonder if either one still works?

OS 9 doesn't use dual CPUs, so only MP-aware programs like Photoshop will benefit much, so for OS 9, a fast single CPU is the ticket. OS X has multiprocessor support at the kernel level, and dual G4s will work nicely, especially the ones with 2MB cache per CPU. The early 100 MHz buss G4s love cache.

The drivers in the G4 "Pro" speakers are the same as the Cube's. Apple used 2 manufacturers, but the specs are the same. There may be differences in paint color (white or silver) and surround color (dark or light grey) but they sound the same - or at least they did when new...

Since your other disks seem to be working OK, my guess is your Carmen Sandiego disk is partly bad. I don't know if CS is copy-protected. If so, that sometimes causes games to be picky about the drives and hardware they will run on. Since you have a real Apple //e, your main use of an emulator...

Take the output voltage and current listed on the label and multiply them. That is, "Output 24V" x "1.04A" = 25 Watts. Your Lombard will want 1.7 Amps or more at 24 volts. Otherwise, the power supply may collapse when the hard drive tries to spin up or at some other power-hungry part of the boot...

The battery powers a relay to start up a Mac II / IIx, so a dead battery will certainly kill one. I believe a IIcx is the same.

How many Watts is that Duo AC adapter? A Lombard should use a 45 Watt adapter. Duo adapters come in 18, 25, and 36 Watt varieties. It may just not be getting enough juice.

Sorry. There are a number of sound programs for early Macs, but neither WAV nor AIFF files existed back then. The early Macs used 8-bit mono 11 or 22 KHz sound files in either boot sound format or Mac Recorder format mostly. WAV and AIFF are both 16 or 24 bits, usually 48 KHz sample rate. An...