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LCIII Video Adapters
Posted by: dcr on 2025-01-01 14:19:04
A long time ago, I bought (via eBay, I believe) an assortment of video adapters for converting from the output of a Mac (pre-Intel) video to (mostly) VGA. Of those, I only had one that worked with any sort of reliability (and still a lot of trial and error). The bottom line is that I don't have a reliable adapter, which means if I use one and it doesn't work, I cannot be sure if the issue is with the adapter or the computer.

So, what is/are some good adapters (brands, models, links to eBay/Amazon item) for connecting an LC III to a modern-ish display? The LC III has only the built-in video output. I would prefer to use an HDMI display if there is something available that can convert from Mac video output to HDMI. Alternatively, I do have some displays that take VGA input.

Any recommendations?

Thanks!
Posted by: finkmac on 2025-01-01 16:15:25
get one with dip switches. preferably two rows.
Posted by: Macsimus on 2025-01-01 19:57:06
Check out the Mac Sync-inator from Big Mess o' Wires: https://www.bigmessowires.com/mac-sync-inator/
Posted by: dcr on 2025-01-05 13:55:44
Thanks! The Mac Sync-inator seems promising.

Are there no Mac video to HDMI adapters? I suppose I could try a Mac > VGA adapter and then VGA > HDMI adapter but that seems like that might be asking for problems.
Posted by: cheesestraws on 2025-01-05 14:29:53
Are there no Mac video to HDMI adapters? I suppose I could try a Mac > VGA adapter and then VGA > HDMI adapter but that seems like that might be asking for problems.

HDMI is digital, VGA is analogue. You need a digitiser in the path. Anything that claims to adapt VGAish to HDMI has a digitiser in it, usually a bad one. The scaler I (and a number of other people around here) use with great success is the Extron RGB-HDMI 300 (A), which is relatively available on eBay for reasonable prices if you're a bit patient.

But you'll still need a mac-style d-sub to VGA-style d-sub adapter.
Posted by: dcr on 2025-01-05 17:38:24
Thanks!
Posted by: joevt on 2025-01-05 20:29:52
This thread has adapter info: https://tinkerdifferent.com/threads/documentation-for-db15-to-vga-adapters.318/
Posted by: mikes-macs on 2025-01-07 07:06:27
I have two of these that work well for Mac IIsi, Performa 400, SE/30 with PDS video card, and Power Mac 8600.

IMG_0395 2.JPGIMG_0393 2.JPG
Posted by: theirongiant on 2025-02-06 02:14:41
+1 for the BMOW Mac Sync-in-ator.
Posted by: ironborn65 on 2025-04-16 03:18:15
I have found this ... it was unknown to me
1744798680399.png
Posted by: shirsch on 2025-05-04 08:07:28
Mac-sync-inator is a great gadget. I have perhaps a half-dozen passive adapters and the sync-inator was the only device that gave me a display from a newly acquired IIci.
Posted by: theirongiant on 2025-05-05 20:34:28
+1 for the Mac Sync-inator. It was a day-1 purchase when announced. Very handy thing.
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