Pasco SE-7981/SE-7985 GM Detector: Schematic and Modern Software for XP/Linux?

hello ,

i recently was asked by a high school teacher to look at a pasco SE-7981/SE-7985 GM detector made by LabNet .
it is hard to find any real information about the unit .
the on-board count/activity led is toast , but the g/m tube/HV is still good (proved by placing an AM radio near the unit and exposing it to an americium source) .
repairing the led and quite possibly (what i take to be) the buffer/scaling circuit is pretty straight forward .

this leaves the interface software/program (yep , the original big floppy is in the kit) , it was written for the apple II series (did i mention that the unit was old ?) . the interface adapters are present .

does anyone know of/where to get a schematic for the unit and "modern" software (say XP or ubuntu/linux) ?

any help is greatly appreciated .

You can locate the manual online.
ftp://ftp.pasco.com/support/Documents/.../SE/SE.../012-05418A.pdf
The schematic i believe you have to contact Labnet i hope it helps.

yes , the "operators manual" is available .
as for labnet ... i am not sure if they went out of business , were absorbed by another company in order to use the name or the product is so old that anyone who knew about it is now on portable oxygen and living in florida .

oddly enough , i can find more information about the sundry "radiation meters" built in the1950s-1960s .

thanks for the input ...
the search continues .