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RE: [N8VEM-S100:537] looking for an S-100 expert builder to build and test prototype board

Thanks Kipp, corrected U91.
The 8284 clock controller takes a 3X Oscillator or Crystal. So 9X3 = 27.  Of
course you can use a slower Oscillator if you like.
I just happen to have more Oscillators than crystals!  I have explained
further in the text.


John Monahan Ph.D

-----Original Message-----
From: n8vem...@googlegroups.com [mailto:n8vem...@googlegroups.com] On
Behalf Of Kipp Yeakel
Sent: Wednesday, December 14, 2011 6:00 PM
To: n8vem...@googlegroups.com
Subject: Re: [N8VEM-S100:537] looking for an S-100 expert builder to build
and test prototype board

     I just read through the instructions quickly, there is a reference to
UY91, should it be U91? Also, just below the photo, it says 27mhz crystal.
Should this be 24mhz? I thought the crystals were 24 MHz, 2 MHz, and 24 MHz.
The crystal at X1 does not have a value on the schematics, so I guessed,
based on your earlier write up.

Sent from my iPad

On Dec 14, 2011, at 7:03 PM, "John Monahan" <mon...@vitasoft.org> wrote:

> Guys I have just spent the day writing up the construction notes on 
> the new
> 8086 board.  It's towards the bottom of this page:
> http://s100computers.com/My%20System%20Pages/8086%20Board/8086%20CPU%2
> 0Board
> .htm
> Hopefully I got all the major points. If anybody spots an error or 
> something is unclear please let me know.
> Enjoy
> John