Re: Indus GT floppy drive power supply

From: William Levak (wlevak_at_grex.cyberspace.org)
Date: 2005-09-03 13:27:03

On Tue, 30 Aug 2005, Raymond C. Bryan wrote:

> >I have come across a Indus GT Commodore compatible floppy drive.  It does
> >not have it's power supply with it.  Does anybody know what it requires?
> 
> I also came across one of these drives and I took it apart to try to 
> figure that out - I never have and it is still in pieces in a box 
> somewhere.

I took the drive apart.  The line goes from the power connector, to a 
switch, then to a large filter capacitor, and then to 2 7805's.

According to the 7805 spec's, it needs 10V input and will handle 1A each.  
That would mean it needs a 10V 2A power supply, and it looks like the 
center pin is positive.

I could not find a 10V 2A supply, so I went with my first guess of 12V 
1.5A.  The drive powers up, but does not read or write a floppy disk 
correctly.  I can't tell if it is not working, or I am not supplying 
enough power.



       Message was sent through the cbm-hackers mailing list

Archive generated by hypermail pre-2.1.8.