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What are these 34 pin adapters for?

Dave Wurm Page Icon Posted 2018-01-11 7:23 PM
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Hi,
In my accumulation, I have found several of these 34 pin adapters.


One side of the printed circuit card edge is pin for pin (17 pins).
The other side has all pins in common.

Do you know what it is for?
Do you need one?

Thanks, Dave

Edited by Dave Wurm 2018-01-11 7:28 PM
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Rich Hawley Page Icon Posted 2018-01-11 10:07 PM
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FDD?
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Dave Wurm Page Icon Posted 2018-01-12 3:10 AM
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Rich,
Okay, the pin configuration of the black connector does match the Floppy Disk Drive pin-out.

Any idea what the card edge connector might mate with?

Thanks!
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Rich Hawley Page Icon Posted 2018-01-12 1:51 PM
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I was wondering if they might have been some propriatory cable connection for a FDD… for some weird device. I notice the slot on the edge connection which commonly separates the power connections…although you would expect at least 3 for 5V and 12V and ground…anyways, here's the other half… damn IDC cables… never know what they are for…



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C:Amie Page Icon Posted 2018-01-12 5:24 PM
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It does look like an adapter to allow an IDE-style floppy drive to be connected to an old 80's era computer that requires an external floppy drive. BBC Micro, Commodore, Amiga etc, even some IBM compatibles.
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Rich Hawley Page Icon Posted 2018-01-12 6:10 PM
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Agree...except for the Amiga as I was the premier Amiga fanatic back in the 80s. External drives connected with a standard 23 pin serial type connector. Internal drives used a ribbon connector with the pins built onto the motherboard and a separate 4 pin mini-molex type connector for power.

It's got to be some type of FDD adapter. And I forgot...the 2 pins on the end are really 4 pins, 2 on each side...that makes it 2 grounds, +5v and +12V. The others are the data carriers...
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