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Author Topic: US Power supply for GVP Impact A500  (Read 1952 times)

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Offline BlatboyTopic starter

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Re: US Power supply for GVP Impact A500
« Reply #14 from previous page: June 09, 2015, 04:24:10 AM »
Yeah yeah yeah.  You got me.  I've been distracted by other things and now suddenly this project is back in sight of my red eye of Mordor.

I had certainly looked at all the links, and thought I was a little afraid to tax my A500 by giving power via the bus.  The GVP is an earlier model (it looks beefier than the series II) and has a big honkin' old SCSI spindle drive in it...

So, as Mech suggested, I bought an old A500 power supply, and wanted to mod it.  I now know the pinouts of the GVP... they don't use the -5 and -12 volt rails...

If I use the old A500 power supply and have nothing connected to the -5 and -12V rails, that should be ok, yes?

Offline Oldsmobile_Mike

Re: US Power supply for GVP Impact A500
« Reply #15 on: June 09, 2015, 05:42:37 AM »
Not trying to beat a dead horse, but something like this would probably work, and draw next to no power at all:

http://imall.iteadstudio.com/scsi2sd.html

:smack:
Amiga 500: 2MB Chip|16MB Fast|30MHz 68030+68882|3.9|Indivision ECS|GVP A500HD+|Mechware card reader + 8GB CF|Cocolino|SCSI DVD-RAM
Amiga 2000: 2MB Chip|136MB Fast|50MHz 68060|3.9|Indivision ECS + GVP Spectrum|Mechware card reader + 8GB CF|AD516|X-Surf 100|RapidRoad|Cocolino|SCSI CD-RW
 Amiga videos and other misc. stuff at https://www.youtube.com/CompTechMike/videos
 

Offline BlatboyTopic starter

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Re: US Power supply for GVP Impact A500
« Reply #16 on: June 10, 2015, 03:47:49 AM »
Which is a great solution, and I wish I would have known about that before.  Hmmm.  I bet that would work in my old 68K Macintosh machines as well.  

However, I guess I just want to try to hack this old GVP sidecar into working...just to see if I can... play with it a little bit, and maybe I'll get rid of it and upgrade to the SCSI2SD.  Sorry if I'm the one beating the deceased equine situation.  Haha.  ;)

But of course using the SCSI2SD still does use the old sidecar.  Very interesting.

THANKS!
« Last Edit: June 10, 2015, 03:50:39 AM by Blatboy »