On Tue, 10 Jan 2012, Fred Cisin wrote:
  This probably won't be any help, since I no longer
have ANY of it (Uncle
 Roger has most of my old hardware.  also schematics and "service" manual).
 15-20 years ago, there was a crude terminal program for the HC-20 (HX in 
That should read 25 to 30 yrars ago!  It has been TOO long.