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  1. We used to buy wire wrap boards (can't remember the vendor) with existing Nubus interface circuitry that provided access to the address/data bus and control lines. We built our own controller boards and the software group wrote unique drivers using MPW. Latch 8 bits, shift, repeat as necessary then process the assembled word. Apple was amazed that we could do real time simulation with a Mac II. Those were the days.
  2. I was looking through LowEndMac today and saw this. I thought those of you in the south east area of the US might be interested in this. >>>Here at Low End Mac, we appreciate older computing equipment more than most – and that extends to more than just Apple gear. As someone with an active interest it retro technology, I was asked to promote the first ever Vintage Computer Festival SouthEast being held on April 20th and 21st, 2013. It will be inside a former CompUSA and what was their regional corporate offices in Roswell, Georgia. The Vintage Computer Festival is an inte
  3. Given: A G3 Lombard with two batteries. I also have a stand alone battery charger. The machine recognizes the presence of battery #1. It runs on it and charges it with no issues. The machine does not recognize battery #2. This eliminates a problem with the machine. I've tried both batteries in both bays. The problem follows the suspect battery. I've tried that Battery Reset program from Apple. No dice. Battery #2 charges fine on the stand alone charger. It currently shows four green lights. If I unplug the power cord with battery #2 installed, the machine will die within 30
  4. BACK ON TOPIC boys and girls The best success I've had is using an external SCSI drive. My 8600 (tri-boot 10.2.8, 9.2.2 or 7.5.5) and my iMac (10.6.8 ) are on the Ethernet hub. So I hook the external SCSI to the 8600, copy from iMac to 8600 and then onto the external drive. Once I've copied what I want, I connect the external SCSI to the SE. The only complication I ran into is if I have too large of a SCSI drive in the external case. 2MB is about max. Sometimes the SE argues with the external drive, particularly if it is partitioned, but I have had success with single drives. I
  5. I have a Motorola GN825G wireless adapter that worked for a while. When it works, it works great. The bad thing is that after a while, the card powers itself off and from then on, the system refuses to see it. I've seen this behavior with the system booted 10.3 and 10.4. I finally bought a USB wireless dongle that works only with 10.4 and I seem to be pretty happy with it on this Lombard. I have a feeling my issue is a problem with the motherboard. This machine also refuses to recognize the battery. I've changed everything except the motherboard troubleshooting the battery issue. I
  6. Check out this site. There's a ton on info on exactly what you're trying to do. There's pinouts and connector descriptions as well. http://www.ccadams.org/se/serial.html
  7. Local talk to another local talk mac is a good option albeit slow. Another option is an external SCSI drive. I have an external drive enclosure that I've used up to a 700MB drive on my SE. You'd need a second machine with an external SCSI connector to copy from the external drive. The last option I can think of is to remove the hard drive and daisy-chain it in another machine. Find a SCSI cable with three connectors and a 'Y' power cable. Don't forget to set the SCSI jumpers correctly.
  8. Break out your magnifying glass and look for solder bridges around the SCSI connector. If you have a working board to compare to, you might have a chance to find an errant bridge. The other thing to check would be the condition of the cable since you say the problem occurs only when you plug the HD in.
  9. That was the problem I was running into. With 6.0.8 on both partitions, it always booted off of the first partition. I booted off of the floppy and initialized the first partition. At restart, I got a flashing disk, therefore it couldn't see the second partition for whatever reason. The fix? I started with a 800k floppy drive and a 150MB internal drive. My spare 800k floppy drive turned out to be bad. I added a Super Drive never intending on reading 1.4k disks plus a skinny 40MB hard drive. I booted off each floppy drive for drill and both boot. I initialized both hard drives and i
  10. I thought I'd pull my SE out of the closet and play. It's a basic SE (not an SE/30) with 4MB of RAM. I replaced one of the 800k floppy drives with a 150MB hard drive years ago and it works well - for what it is. I decided I'd try to make this machine a dual boot between 6.0.8 and 7.5.3. It'll boot the 800k 6.0.8 install disk 1 and it will also boot a 700MB external SCSI drive with 7.5.5 where the 7.5 installers are located. Here's what I've done so far. I searched this site and didn't find anything along this line. I partitioned the 150MB disk into roughly 100MB and 50MB partit
  11. Pay attention to your reference designators. Uxx usually refers to ICs, Crystals can be U or X. CR components are typically diodes, but not in this case. Look at the device. The number LM385 tells you what it is. It is a Micropower Voltage Reference Diode http://www.national.com/pf/LM/LM385-1.2.html#Overview. Do a Google search on "LM385" for more info.
  12. I have a G3 Lombard with similar issues. This thing refuses to see the battery, let alone charge it. I bought a new battery and external charger. The new battery took a charge, the old one flashed the charger light at me. This confirmed the old battery was toast. I also replaced the DC board and the charger board. The battery still refuses to show up. The battery has four lights on a full charge. I tried it in a friends Pismo and his Pismo saw the battery as expected. So the battery is ok and the problem is with my machine. I read somewhere that one other possibility might be the
  13. I have a couple of 8500s - for parts. I had the chance to upgrade the workhorse with a refurbished 8600. The main advantage being that the 8600 is easier to get into if I need to. I'm lucky enough to have one of those Sonnet G4 cards in it with 700 some odd MB of ram. I have 10.2.8 on one disk, 9.1 on another and 7.5.5 on a third. This machine gets fired up on 9.1 when I want to use the built-in audio ports for dubbing old LPs or cassettes from the stereo and creating MP3s for playback using iTunes. So far, my library is over 48 hours worth with much more to go. Currently running: G
  14. Here's what I did when my Lombard HD started the downhill ride. First, I was able to hook up an external SCSI with an HDI-30/SCSI adapter and clone the HD to an external drive. This was more of a concern to me than the drive replacement itself. Once I had the drive cloned and a test boot done from the external drive, I was good to replace the drive. I went to Best Buy and bought a WD Scorpio Blue 250GB PATA hard drive. Yes, 250GB. It was the smallest drive they had. The issue I found is that the Lombard controller will only recognize 128GB max, so I have half of the HD unavailable
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