Apple 2 unidisk adaptor to 20 Pin IDC Disk ][ and pass through

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Apple 2 unidisk adaptor to 20 Pin IDC Disk ][ and pass through
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G'day,

If your like me and your apple units all have Unidisk DB19 Plugs, it is annoying trying to work with 3 party devices or drives with 20 pin IDC connectors.

I have some SDCard readers that I want to boot off, but also some unidisk and Disc ][ devices, so I have designed this and placed it on github if you want to make one.  It allows you to connect 2 x 20 pin devices or 1 20 pin as drive 0 (SD Boot) and then have your DB19 unidisk as a second drive.

 

please feel free to use at your own risk.  I would like someone to test with floppy emu as I don't have one.

 

Regard Paul in Australia.

 

https://github.com/pocoaust/Apple-ii-unidisk-adaptor