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  1. Charlieman

    Cleaning Floppy Disk Drive

    You'll need two kits -- one for single sided 400KB drives and one for 800KB drives. Using a two sided cleaning kit in a single sided drive risks damage to the felt counter pad (the mechanism opposite the drive head). Unless you are experimenting with a lot of old disks with loose oxide on the...
  2. Charlieman

    System 6 or older scripting?

    Prior to System 7, the OS has little interapplication communication and there is no true scripting. Userland Frontier relies on the same technology as AppleScript so it is System 7 only. There are a number of macro alternatives which drive the Mac interface. AutoMac (Genesis Micro Software) --...
  3. Charlieman

    Macintosh Hard Disk 20

    I'm not surprised. Apple heavily pushed the Mac Plus upgrade for the Mac 128K/512K in 1988/89 so that they could drop customer support. After promotional discounts, the upgrade was cheap by Apple standards. At the same time, Apple would have dropped support for the HD20. In reality, "dropping...
  4. Charlieman

    MicroSpeed trackball with 9-pin female connector?

    That sounds like a PC serial device so it won't work with a Mac. The Mac version was called a Max-Trac, I believe.
  5. Charlieman

    MacCHARLIE

    I had bit of fun hacking around with one a few years ago: http://www.vintagemacworld.com/charlie.html The target market for MacCharlie were people who needed an occasional or part-time PC to run DOS applications such as accounting, database, online services etc. The limited graphics...
  6. Charlieman

    Maximum performance tuning of a Power Mac 7200

    I am surprised that you do not notice much of a performance improvement. I used an 8200 as a work/test machine for many years, and there is little positive that can be said about the 7200/8200 models. My first upgrades were RAM, of course, followed by a Seagate Barracuda 4GB 50 pin SCSI disk...
  7. Charlieman

    Replacing HDD in Mac SE1/40

    To avoid playing around with the data cable, use the keyboard combination to suppress SCSI bus scanning during startup (Command-Option-Shift-Delete). After the Mac has booted, use SCSI Probe or similar to scan the SCSI bus (lots of disk formatters have this functionality built-in). This trick...
  8. Charlieman

    IIsi Rom slot

    And the IIsi ROM does exist -- I've got one. I acquired it for next to nothing with a set of SIMMs. Gamba lists the part number.
  9. Charlieman

    AppleDesign Keyboard: Worst Keyboard Ever?

    As MacJunky wrote, Apple's USB keyboards are much worse than the AppleDesign. All the G3 era kbs that I used on a daily basis succumbed to dead keys (intermittent operation rather than complete failure). HP make reasonably budget keyboards (PS2 and USB) to accompany their business class PCs...
  10. Charlieman

    NeXT Development Board

    Should we not assume that the colour coding is important? Looking at the top view: * There are a bunch of amber/yellow labeled 16 leg chips which might correspond with the amber/yellow chip pack (possibly resistors). * The blue labels match up with a plausible SCSI port. If It has 25 pins, I...
  11. Charlieman

    The Unloved Imagewriter I

    When you send a long print job to your Imagewriter I, your neighbours will tell you why. If you care about neighbourly relations and need to print in the evening, see if you can find an acoustic hood.
  12. Charlieman

    Got my LC475 online!

    Which OS are you running? I think you may be missing a few updates -- appropriate versions of Thread Manager, CFM-68K etc. Assuming you have enough RAM, you should have no problem running Open Transport and a variety of browsers. Take a look at the late Gamba's old browser page for ideas (links...
  13. Charlieman

    Twiggy Mac Boots up - software found!

    It would be easier, not 'better'. For a one bit, pixel defined graphics format there is only one way to create an image.
  14. Charlieman

    Macs that are really picky about scsi...

    Any Mac which does not provide termination power is 'picky'. Perhaps on your Mark 2 adapter, you might add a TP option. Any Mac which does not provide internal SCSI termination will be 'picky' too. The IIfx has its own termination design. It is close enough to SCSI 2 active termination for...
  15. Charlieman

    Apple IIe card question

    The Mac LC or similar can provide services (hard disk partition, network access, serial port access) to the IIe card. The IIe card does not provide services. 5.25" drives cannot be connected directly to the Mac and the Apple IIe card does not provide passthrough access. The unpleasant work...
  16. Charlieman

    Mac Portable, Anyone know what this strange card is?

    According to my notes, the first video card produced by Lapis was the SE DisplayServer. It was a dual mode card (digital/TTL EGA AND analog VGA/SVGA) initially but Lapis developed it for other analog monitors, probably dropping digital/TTL support at some point. Mac Plus versions (clip-on) were...
  17. Charlieman

    Plus Internal SCSI Upgrade Kit?

    General Computers were the only company allowed to fit an internal hard disk without breaking Apple warranty. Early HyperDrive models required logic board modifications by a dealer or by GCC. Later models, the ones sanctioned by Apple, used clip-on expansion boards.
  18. Charlieman

    Daystar Digital Accellerator? 50mhz 030

    It is my belief too that the SCSI card was the only XCI board which actually shipped. Other boards were announced but do not seem to exist in the wild. InfoWorld January 16, 1989 Daystar to Offer 33-MHz SE Accelerator BY ROBERT SNOWDON JONES ... Daystar will also introduce three...
  19. Charlieman

    Daystar Digital Accellerator? 50mhz 030

    Take a deep breath... InfoWorld October 31, 1988 Accelerator II From Daystar Speeds up the Macintosh II BY LAURIE FLYNN Daystar Digital demonstrated recently a 33-MHz accelerator board for the Mac II that Daystar claims doubles the speed of the computer. The product, based on the Motorola...
  20. Charlieman

    Plus Internal SCSI Upgrade Kit?

    And yeah, try it but do not push your luck. In Ye Olde Day when third party companies sold internal SCSI drives for the Mac Plus, it was expected that a human being would be sitting in front of the Mac. We are not in Ye Olde Day so we change our behaviour.
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