TRS-80 Model I modification

[Bill Gunshannon]

On 10/26/18 2:07 PM, Peter Cetinski wrote:

On Oct 26, 2018, at 12:34 PM, Bill Gunshannon via cctalk <cctalk at classiccmp.org<mailto:cctalk at classiccmp.org>> wrote:

Does anyone have a description of how to put 48K of memory in
the TRS-80 Model I without using an Expansion Interface?  I seem
to remember there being some published back in the old days
but can't find anything on the web.  I think it was done with 4164's
and a few pieces of wire wrap wire to jumper the missing address
lines.

TRS8BIT Vol 7 Issue 4 Page 32

http://www.fabsitesuk.com/tandy/trs8bit_year07.pdf



Thank you.  That will do it.


bill