Dear HP82166 IL-Converter enthusiasts,
as Gary Friedman describes in his nice book "Control the world with HP-IL" the IL-Converter is the key tool for any advanced hardware interface and measurement application with HP41 (and HP41).
My own two books continues the basic work of Gary Friedman and the idea behind this is : "Take HP-IL and connect your HP41 to the future". The I/O-Board manual with 300 pages and the IL2000 manual with 150 pages gives you the complete knowledge about working with IL-Converter for creating hardware interfacing solutions, measurement, control and data logger applications.
Some informations you find in HP-Museum articles forum item
003 = hardware interfacing activities
192 = interfacing IL2000 system to analogue world
311 = HP41-PC gateway & emulator.
From this articles you you get the imagination that the Hp41 is much more than a handheld calculator, the fourty one is also a powerful system controller - including nice gateway features to PC world...
Two differences exist between the HP82165 and HP82166 IL-Converter : The second unit is battery powered and includes an additional trigger output line, which is needed for advanced hardware applications.
For the HP41 you need the IL-Module plus the EXT-I/O module (or the Development module) for setting the internal status registers of the IL-Converter.
The I/O-Board manual and the IL2000 manual is available from me - also the HP82166 IL-Converter and some function tested interface hardware systems...
Best wishes from Germany - Christoph Klug