Here's a link to the operating and service manual
(10528A).pdf
It has the disassembly procedure and the little tool that you referenced. Other than
a block diagram, there are no schematics. It's possible there might be some technical
info in an issue of the HP Journal somewhere.
You could probably come up with something similar using a microcontroller and a multichannel
A/D.
It is a handy item though if you're working with that kind of logic circuitry.
The way it auto connects the power pins is pretty neat.
Paul
--
Paul Amaranth, GCIH | Manchester MI, USA
Aurora Group of Michigan, LLC | Security, Systems & Software
paul@... | Linux/Unix - We don't do windows
