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Author Topic: 68 pin SCSI in Amiga  (Read 6536 times)

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Offline LoadWB

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Re: 68 pin SCSI in Amiga
« on: July 08, 2009, 06:16:37 AM »
I've used a couple with Zip drives and CD-ROMs, worked fine.  But I cannot vouch for how well they work with hard drives.  I would assume that they should work fine, considering.

You might want to make sure you are using ones which terminate the unused lines.  I have used ones which I pulled from narrow tape drives installed in Dell servers with 68-pin SCSI, made by Datamate.  They work in both directions, too: I have one in a narrow SCSI controller in a Sun IPX Station running a Western Digital 9GB 68-pin drive.
 

Offline LoadWB

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Re: 68 pin SCSI in Amiga
« Reply #1 on: October 09, 2017, 04:43:41 PM »
Quote from: BLTCON0;831508
You'll need to shed for an expensive high-byte terminated 68-50 adapter.

They're not really that expensive.  The Datamate 5000-5068-13 can be found relatively cheaply and has high-byte termination.  I first found these in Dells with UW-SCSI adapters and narrow tape drives.  Bought several of them a while back just to have on-hand (one of which I just demolished to prove the high-byte resistors are actually present.)

Check here:

https://ebay.com/itm/222653979494

It's more than I paid for mine but still not a bad price.
 

Offline LoadWB

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Re: 68 pin SCSI in Amiga
« Reply #2 on: October 09, 2017, 08:18:03 PM »
Quote from: BLTCON0;831510
@LoadWB
Yes indeed, back in the day (when I was all about SCSI) they were about 3x the price of regular ones, so indeed they aren't 'expensive' but just 'more expensive'.
I actually corrected it right away but you posted faster than your shadow :-)

Furthermore, as today SCSI is mostly gone, I guess they can occasionally be found dirt-cheap as stock surplus or whatever - the culprit (most often) being with the seller unable to distinguish between passive and terminated ones.


Right, these adapters and bloody S-Video to composite adapters, as well.  Flushed $20 on 10 of them only to find they're completely wire-through.  (That's a whole other thread and topic, though.)

If you want a good laugh, and some reputable outlets are guilty of this shyt, too, go look up things like USB-to-Firewire or HDMI-to-component adapters.  Read the small print and you'll find these are completely wired-through, not a circuit in the mix to do any actual conversion.

Back on topic, yes, I found that both Segate and IBM LVD-SCSI drives are great in whatever system you throw them in.  Most of the time even if you don't set the jumper for SE they'll still work just fine.  That's a big bonus for those who don't know any better (hey, we all start somewhere!) and those who just start over-looking simple things (hey, we all end up somewhere!)

:D