Thanks for your perseverance ;-) I get it now.
That's bad news then.. means they will never ever release any schematics.
I wonder though, why they were not "scared" or releasing their schematics up to the '80s, and decided it was suddenly too "risky" when they entered the "digital" age in the early '90's with the first TDS scopes and such.
Only hope would be (not a lawyer again) : if law states for example, that any patent on such devices, can only be valid up to 30 years no matter what... then it means Tek could release all the schematics with a 30 year (or whatever) delay, knowing that even if they did unwillingly infringe some patent, no matter what it was... they would be safe. Unless such a scenario exist, then yeah I guess there is nothing to hope for, even in 50 years time... :-(
Vincent Trouilliez
Vince