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SuperSVGA
replied to the thread
Expansion Memory Cards and Speed Limitations above 5MB on the Macintosh Portable
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And if you're curious of the stock numbers from the CPU GLU: 0x000000 - 0x4FFFFF: 2 clocks 0x500000 - 0x8FFFFF: 6 clocks 0x500000 -...
Jul 27, 2026
Froggy814
replied to the thread
Expansion Memory Cards and Speed Limitations above 5MB on the Macintosh Portable
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Wow! 102% better! That's an improvement! Wondering about how Sideburn put (I think 13mb) of ram in his Portable, and was wondering, how...
Jul 27, 2026
L
litriSE
replied to the thread
Running a Mac Plus logic board on an SE analog board/PSU — anyone done this?
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Update: got it working (mostly)! Connected a known-good Macintosh Plus logic board (1MB RAM, booting off BlueSCSI) to a known-good...
Jul 27, 2026
C
campbellashe
replied to the thread
Expansion Memory Cards and Speed Limitations above 5MB on the Macintosh Portable
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Okay. Wow. What a difference the bodge wire and code logic change made with driving DTACK Now no slowdown at all on the 8MB card...
Jul 27, 2026
john-in-laguna
replied to the thread
Hacking the Kodak Reels 8mm Film Digitizer (New Thread)
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I purchased a unit on Amazon as well. It arrived on June 24th. After a first round of tests with 8mm and Super8mm film, I was...
Jul 27, 2026
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luminescentsimian
replied to the thread
Documentation for DB15 to VGA adapters
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I found this fancy box at a local electronics surplus. It's got a dial AND dip switches!
Jul 27, 2026
GreenBar0n
replied to the thread
"Chime cycles" and other strange behavior from Classic
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The removal of UA5 with a hot air station, provided you use flux, would be very easy to do, takes just minutes. As long as the traces...
Jul 26, 2026
gfuller
replied to the thread
"Chime cycles" and other strange behavior from Classic
.
That photo was taken during the production of the linked video just last weekend. I could definitely see that being the problem, even...
Jul 26, 2026
Elemenoh
replied to the thread
Outbound Laptop Capacitor List & Repair Log
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Repair update: I did get the old drive working after replacing the blown opamp. It has Outbound software version 1.3b2, which I think is...
Jul 26, 2026
C
campbellashe
replied to the thread
Expansion Memory Cards and Speed Limitations above 5MB on the Macintosh Portable
.
Running: Portable M5120 (non backlit) (BlueScsi as drive) Speedometer 3.23 "Performance Test" Snooper 2.0 "Memory Benchmark" System 7.1
Jul 26, 2026
GreenBar0n
replied to the thread
"Chime cycles" and other strange behavior from Classic
.
Was the second picture shown above, of the UA5 sound chip, taken recently? I ask because, if you paid someone to remove that chip and...
Jul 26, 2026
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Rule5
replied to the thread
Bourns Again - Bourns 601 Series RC Network T-Filters Replacement
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I know this is an older post, did you ever make some of these for sale? I’m restoring a Macintosh SE FDHD and may need a set based on...
Jul 26, 2026
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