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dcr

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  1. dcr

    SE FDHD Restoration

    That's what happened to me when I resoldered the analog board on my Mac Plus. I went from getting video when I tapped on the side to no video at all. I went back and resoldered all the spots I had resoldered before plus any spots that looked in any way imperfect. It's worked since then.
  2. I know this is an old thread, but this is the same Mac Plus I resoldered this year for the same issue. So, basically, it had display problems. As I can see in re-reading this thread, I resoldered (and put new solder on) pin 1 on July 21, 2018 and redid the effort on July 28, 2018, after which point it worked fine. Also, at the same time, resoldered anything that looked like maybe it needed it. And it worked fine for about a year, until last Friday, July 12th, when it exhibited the same issue again. On the 15th, I resoldered not only pin 1 but anything else that looked maybe like it could be problematic. And I did remove the old solder and replace with new. Truth be told, to my untrained eye and without a magnifying glass or anything, all the connections looked good prior to resoldering. And it has been kept in an air-conditioned office for whatever that may be worth. Any ideas what the problem might be? I mean, if I have to resolder annually, I suppose it's not a major problem. But, if there's something else that needs fixing that would mean I wouldn't need to perform an annual resolder, it'd be nice to be able to fix it and (hopefully) be done with that particular issue. Thanks!
  3. Plastics may be cleanable. If I recall, the II series had better plastics than later models that now fall apart if you breathe too close to them. If the rust is just surface rust, those metal parts may be salvageable. The electronics would be of greater concern. Sometimes they might clean up well and be restorable. Other times, no. Mouse urine is generally more damaging than water. Oy, mice.
  4. dcr

    Minimum Compact Mac Value?

    On the flip side, the capacitors on the analog boards and PSUs in the compact Macs have held out far, far longer than the capacitors on the logic boards of SE/30s and other later 68k models.
  5. dcr

    Minimum Compact Mac Value?

    I should also set up a 400k boot "floppy" on the Floppy Emu and see if any of them will boot from that. Thanks. I printed out the photo someone uploaded in another thread on identifying 400k vs. 800k floppy drives, but I didn't know about the red light. The other sad thing is that the SE/30s are more difficult to repair (or, consequently, more expensive to have repaired) than the earlier compact Macs. I have a number of SE/30s I need to recap (or have recapped) because I bought a number of them many years ago for use as servers or other uses. I had one that served as a DNS server for a few years. They are nice machines and back when the PowerPC was just starting to get a foothold, SE/30s still had a lot of life in them. With System 6.0.8 and the 68030 chip, they were very good machines for various uses, such as DNS servers, web servers, BBS, etc. And they were relatively inexpensive back then because they were already old machines. But, of course, now they all need to be recapped which, were I to have someone do it for me, might possibly cost as much as or more than I originally paid for the machines. Still, I like the SE/30.
  6. dcr

    Minimum Compact Mac Value?

    Oooooh . . . I had either forgotten or never knew to begin with that the Mac 512k had a 400k floppy drive. I guess I've long been under the impression, again either through ignorance or forgetfulness, that the Mac 512k and the Mac 512ke were nearly identical, except that the 512ke was intended for the educational market. This could explain why the Mac 512k I have doesn't boot from an 800k floppy disk (although it appears to have an 800k floppy drive). Hmm. I guess I need to open it up and see what's actually inside the case . . .
  7. dcr

    BSR Phone-Modem

    I keep meaning to get my old BBS going again, but got rid of the landlines last year so wouldn't be able to have dial-up anymore anyway. Kind of strange that landlines are so expensive these days when they used to be the least expensive option. Of course, I'm not sure the system would allow a 1200 baud connection. I don't remember if there was a minimum connection speed. I used to be able to dial-in with my Newton but I'm pretty sure the Newton modem was 2400 baud. But, anyway, if it was Hayes Compatible, then it should be workable with most systems--at least if you can find ones still running. Hayes was, I think, the most popular brand back in the day.
  8. dcr

    Minimum Compact Mac Value?

    Uniqueness, perhaps? The Plus has SCSI but it also has the non-ADB keyboard and mouse. So being different like that positions it in a unique spot. Additionally, it's perhaps the first usable Mac. Not that the 128k and 512k aren't usable, but the full MB of RAM (with the option of more) gives it that extra push. I know. So many things I should have stocked up on . . .
  9. I'm sure I will need them, especially if the three Mac Pluses I mentioned in another thread all turn out to have defective floppy drives. But, I may have to pay you to fix them for me at some point.
  10. I agree that a computer doesn't feel completely restored without a working floppy drive. I have a Mac SE that I restored from multiple machines, yet was frustrated by the lack of a functional floppy drive. Tried cleaning and lubricating one or two drives without success. Maybe three; I don't remember anymore. Finally bought a working one (from LaPorta I believe) so that I could finally have a fully functional machine. (Of course, now it may be having SCSI problems but that's a separate issue. . .) I have a Floppy Emu for it, so a floppy drive isn't absolutely necessary but it just doesn't feel like it's a fully functional computer without it. I will primarily use the Floppy Emu with it, but it's nice to know there's a working floppy drive in there should I ever need it.
  11. dcr

    Mac Plus (Probably) that Won't Boot

    No. It just occurred to me that I should try booting with the Floppy Emu. I didn't have that the last time I tried to boot these Macs.
  12. dcr

    Mac Plus (Probably) that Won't Boot

    I was hoping it's not the floppy drive. LOL. I seem to have a collection of non-functional ones. I do not remember for certain but I don't think so.
  13. dcr

    Mac Plus with 4MB of RAM

    Thanks all! It seems like the best bet would be to buy a Kensington System Saver just to be on the safe side.
  14. dcr

    Mac Plus with 4MB of RAM

    Thanks for that. I wondered why it seemed sluggish to boot but otherwise fine.
  15. I have three (four?) compact Macs that I cannot get to boot from a known-good floppy disk with System 6.0.8 installed. The backs all say Macintosh Plus, but the fronts vary. So, perhaps these were upgraded from 128k or 512k machines to the Plus. To the best I have been able to determine, they all have 800k floppy drives. (A couple months ago, someone here posted an image showing how to distinguish between a 400k and 800k floppy drive and, according to that, these all have 800k drives.) No sad Mac codes or anything else out of the ordinary. They just spit out the floppy like it has no operating system. Is there anything besides a defective floppy drive that would cause them not to boot?
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