Macintosh Portable

Chris Pye pye at
Sat Nov 26 00:26:43 CST 2016

Does anyone know off hand what polarity that Mac Portable requires? I know that the original was 7.5V @ 1.5A, but not sure of the polarity.

I did have have a PB100 power supply that I used with mine, but (unfortunately) no longer have it.

Also (if it still works) what is the easiest way to image the old Conner SCSI drive? It doesn’t appear to have a standard connector.

I have googled this, but didn’t come up with anything useful.


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