HP loader rom chips

[Glen Slick]

Would a 74S287 (256x4 tri-state output) also work?  Unicorn
Electronics lists those at $7.49 each.

The Nat Semi DM74S287 is on the supported device list of my BP Micro
programmer, no idea if it is supported by the 29B.


On Wed, 26 Jan 2005 12:36:29 -0600, Jay West <jwest at classiccmp.org> wrote:
> Jameco claims to have real Signetics 82S129's in (not substituted parts).
> These are for the HP 21MX loader roms.
> 
> They are quoting me $9.95 each for qty 1-10.
> 
> Anyone know of a better source, or want to go in with me on this? I will
> probably get about 10.