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nickpunt

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  1. If this is for the Color Pivot IIsi that works in IIsi and with some hacking the SE/30, here's the answer from an old forum thread. That thread is not available anymore unfortunately due to an issue in forum migration a few years back. The connector is a Molex 50-57-9415. Here's the relevant section from the old thread: For future reference, pin 1 on the Pivot card is the pin adjacent to the "J2" text on the board's silkscreen. The pins are: CODE: SELECT ALL 1 RED GND 2 RED 3 C SYNC 4 SENSE[0] 5 GREEN 6
  2. Perhaps these photos could help, I've got even more zoomed in ones in case traces are not visible. Unfortunately this one is in storage and inaccessible. Also added is comparison to Supermac's single pds adapter, in case that offers some insight.
  3. Supermac made a dual pds adapter for the IIsi which can work in an se30, though it’ll be a challenge to fit cards inside https://wiki.preterhuman.net/SuperMac_Dual_PDS_Adapter
  4. @jeremywork yeah I think you're right about two distinct 2xx series PCBs and that likely being a revision. Mine has a 250-9405-0283 hand drawn in the lower corner of the PCB. This is probably the serial #, with '250' being the model, but I wonder if it also encodes a board rev. Other numbers of note on there: AB2984767 - AmiBIOS revision 4342 21 - silkscreen on backside of board near ram (c) OrangePC 1994 silkscreen on backside of board 90 ACT 01020 REV N/C - the sticker atop one of the chips @Byrd good suggestion! I haven't tried any alternate drive
  5. Do the visual artifacts look anything like the ones I posted in this thread @jeremywork? Mine is a 250. I looked at pics of my card's back and do not see any broken caps, but perhaps there are ones that have partly detached or I'm missing something. Here's some photos of mine. I wonder if various caps & resistors are different between the versions. I wasn't able to get a DX4 Overdrive working in the card regardless of what jumper settings I selected (maybe BIOS issue?). Note mine has a small bodge wire right behind the nubus slot, and a small scratch on the back near C88 by the
  6. Love this! I wonder about ways to make it perform better. Right now it looks like you're using youtube-dl to download the whole video and then encode, which depending on the speed of your internet and linux machine may be quite slow. Instead, you *may* be able to build this to download only small chunks (~1-5 min each) as this is a youtube-dl feature, and then build an alternative to Quicktime's timeline scrubber UI in HTML so you could click ahead or behind to load different chunks. And if you just let the video play, when its done you load the next chunk - not sure if this forces
  7. Thanks for the great insight @JDW! I wonder if anyone is interested in making replacement SE/30 wiring harnesses? Making these is a huge pain for me, and I imagine there'd be healthy interest here if they're a weak link in SE/30 maintenance.
  8. Well looks like I'm wrong, that card is the same as the Presto 040 by Sonnet according to this thread where a Tokamak is mentioned which shows the board using the IIfx special extended slot (attached images, since who knows when Google Photos will be discontinued).
  9. FYI @cofford @Bolle this 68040/33 accelerator is from Donoho Design Group, which would suggest it is related to / is part of the Tokamak II FX (according to DDG's website). https://www.ebay.com/itm/VINTAGE-CARD-by-Donoho-Design-FOR-APPLE-MAC-COMPUTER/274740925739?hash=item3ff7d5d52b:g:z-sAAOSwLOpgZMO5
  10. I have a later version of this card with a 486SLC and a single ISA slot, but none of the accessories. Haven't tried to get it working yet, no idea how the whole ISA card fitting may work. You can see the PCB has a notch cut out for the ISA card metal bracket at least.
  11. I've compiled everything I was able to find out and gather about MicroTouch Mac products in this GitHub repo. There's a lot here that may help with any reverse engineering effort: https://github.com/nickpunt/MicroTouchMac @snuci hope its ok for me to copy your files there. LMK if not and I'll remove.
  12. @BadGoldEagle the pics aren't showing up. Can you post them again? Just got the MicroTouch and have done some research, may be able to help you.
  13. Just got it today! Haven't installed it yet, will have to make a different power harness as this one draws power from the SE PDS, and I'm on an SE/30. Some things I've noticed - two layer board with ton of resistors and capacitors and off the shelf chips, 10mhz crystal, two ROMs, and an intel microcontroller C8095-90 - looks like mine is an earlier version than snuci's, as it is (c) 1987 and has two unpopulated DB25 sections, where snuci's is 1989 and has what looks like an unpopulated SE connector. Guessing perhaps mine might have been a design also used for other types
  14. Yeah I've been keeping a very close eye on parts for 8 years and never seen this until now. With that 72pin SIMM and what could be a 33mhz bus (going by the 66mhz xtal) this could be quite a bit faster than an SE/30 with the same accelerator. Video out is probably underwhelming though with that VRAM.
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