This is the Macintosh SE that we had as a family computer since it was new in 1987. As a youth, I absolutely loved this machine but I always was bothered by how slow it was, especially after upgrading it to System 7. Today, I'm going to fix that be trying to install a mysterious vintage accelerator into it to see how much of a boost it can really get.
0:00 Intro
1:24 A little background on the Macintosh SE
7:36 Radius SE Accelerator
9:28 Radius Two Page Display card for the SE Accelerator
11:19 Orion by MacPEAK Systems
17:41 Testing untested Mac SE motherboard
22:56 Testing the Orion accelerator
24:16 Testing the Radius SE Accelerator
25:02 Troubleshooting issues with the Orion accelerator
26:36 Orion accelerator memory size jumper testing
30:15 Replacing Mac SE ROMs using EPROMS
36:04 Face off! Macintosh Classic vs the accelerator Mac SE
39:43 Sound issues with the accelerator
50:40 Conclusion
--- Video Links
Thread trying to identify the MacPeek Orion accelerator:
https://68kmla.org/bb/index.php?threads/identify-this-board.1052/
Macintosh ROM collection:
https://www.macintoshrepository.org/7038-all-macintosh-roms-68k-ppc-
Vintage Macintosh accelerator drivers:
https://vintageapple.org/macdrivers/
Spreadsheet showing Mask ROM to EPROM wiring:
https://docs.google.com/spreadsheets/d/1s-AH1M4gMfCosxlMMgarAeif7tjggZ2p48kG57qvvPs/edit?usp=sharing
Adrian's Digital Basement ][ (Second Channel)
https://www.youtube.com/channel/UCbtwi4wK1YXd9AyV_4UcE6g
Support the channel on Patreon:
https://www.patreon.com/adriansdigitalbasement
-- Tools
Deoxit D5:
https://amzn.to/2VvOKy1
http://store.caig.com/s.nl/it.A/id.1602/.f
O-Ring Pick Set: (I use these to lift chips off boards)
https://amzn.to/3a9x54J
Elenco Electronics LP-560 Logic Probe:
https://amzn.to/2VrT5lW
Hakko FR301 Desoldering Iron:
https://amzn.to/2ye6xC0
Rigol DS1054Z Four Channel Oscilloscope:
https://www.rigolna.com/products/digital-oscilloscopes/1000z/
Head Worn Magnifying Goggles / Dual Lens Flip-In Head Magnifier:
https://amzn.to/3adRbuy
TL866II Plus Chip Tester and EPROM programmer: (The MiniPro)
https://amzn.to/2wG4tlP
https://www.aliexpress.com/item/33000308958.html
TS100 Soldering Iron:
https://amzn.to/2K36dJ5
https://www.ebay.com/itm/TS100-65W-MINI-Digital-OLED-Programmable-Soldering-Iron-Anti-static-Structure/113382669853
EEVBlog 121GW Multimeter:
https://www.eevblog.com/product/121gw/
DSLogic Basic Logic Analyzer:
https://amzn.to/2RDSDQw
https://www.ebay.com/itm/USB-Logic-DSLogic-Basic-Analyzer-16Ch-100MHz-4Ch-400MHz-Xilinx-Spartan-6-FPGA/202543965672
Magnetic Screw Holder:
https://amzn.to/3b8LOhG
https://www.harborfreight.com/4-inch-magnetic-parts-tray-90566.html
Universal ZIP sockets: (clones, used on my ZIF-64 test machine)
https://www.ebay.com/itm/14-16-18-20-24-28-32-40-pin-IC-Test-Universal-ZIF-Socket-Fs/303206721971
RetroTink 2X Upconverter: (to hook up something like a C64 to HDMI)
http://www.retrotink.com/
Plato (Clone) Side Cutters: (order five)
https://www.ebay.com/itm/1-2-5-10PCS-Micro-Scissor-125mm-PLATO-170-Electronics-Cutter-Side-Cutting-Pliers/163458746184
Heat Sinks:
https://www.aliexpress.com/item/32537183709.html
Little squeezy bottles: (available elsewhere too)
https://amzn.to/3b8LOOI
--- Links
My GitHub repository:
https://github.com/misterblack1?tab=repositories
Commodore Computer Club / Vancouver, WA – Portland, OR – PDX Commodore Users Group
https://www.commodorecomputerclub.com/
--- Instructional videos
My video on damage-free chip removal:
https://www.youtube.com/watch?v=XQVjwPsVFd8
--- Music
Intro music and other tracks by:
Nathan Divino
@itsnathandivino