Re: (Fwd) RE: 1541IDE and 1541IDE-S

From: André Fachat (
Date: 2007-12-15 20:13:31

> For the record, the main parts list is:
> 1   74ls244
> 1    74ls245
> 1    74ls139
> 1   74ls00
> 2   74ls573 (You can use the AC parts, but Ruud indicates you should not 
> need to.  I actually meant to pick the LS variant

I actually went on and use 'ALS parts nowadays, although my designs
normally need to be faster. 'ALS uses less power too.

> The last item is for folks who plan to use the 6502 socket.  You need 
> something to plug into the original 6502 socket on the board and can be 
> soldered to the bottom of this board.  There are many options, depending 
> on how much you want to spend and how gently you want to treat the 
> original 6502 socket.  At the cheap end, you can use 2 20x1 headers (or 
> 1 1x40 you break in half: 

I normally use two 20x1 headers, but between the headers and
the original socket, I put a cheap 40pin sockets:
- reduces stress on the original socket due to the reduced pin diameter
- helps adjusting the two separate 20pin headers.


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