Re: 1541IDE and 1541IDE-S -- and 8250IDE? (and 64IDE, now)

From: raycomp (
Date: 2007-12-14 07:17:46

On Dec 13, 2007, at 5:49 PM, Jim Brain wrote:


I do not see the need for all the ground plane on this board.  It is  
not an RF circuit in need of shielding, is it?

I do not need to get the etched  board myself, I still have 5 or 6 of  
the proto-typing boards with the EXP port card edge connections these  
have a slim buss all the way around the outside (top and bottom) that  
could be connected to the 4 grounds of the port (or one side could be  
ground the other VCC buss).  My problem with the proto-types is that  
I would have to wire-wrap to achieve the red layer connections.  but  
with sockets on the top side the wires could work on the top-side.

The card edge fingers are longer on these proto boards too.

-- Ray
|Raymond C. Bryan  651-642-9890 vox      | The battle is sometimes |
|Raymond Computer  651-642-9891 fax     | to the small  
for                 |
|795 Raymond Ave   -email:  raycomp         | the bigger they  
are          |
|St Paul MN  55114    _at_visi_dot_com      | the harder they  
fall.         |
|USA              Amiga - Commodore                |     -- James  
Thurber --     |

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