Friden EC-130 calculator schematics?

Tony Duell ard at p850ug1.demon.co.uk
Sun Oct 16 12:33:23 CDT 2005


> 
> Tony Duell wrote:
> >>No, don't have a schematic, but if anyone wants to lend me a physical
> >>unit, I'll reverse engineer it. :)
> >>(..seriously; it's one I have wanted to RE.)
> > 
> > 
> > You're generous... I would expect to be _given_ (as in, to keep 
> > afterwards) the machine if I was going to spend a few weeks/months 
> > producing schematics
> 
> I don't believe you :-) Seriously, if the machine in question's 

OK, ask me to reverse-engineer a complex machine without giving it to me 
and see how far you get...

Yes, I do enjoy figuring out how things work, but the real reason I 
produce such diagrams is to keep my own machines running. Of course I 
share them with othes, but I am not going to spend a lot of time figuring 
out how to keep _your_ machine running unless I get something in return. 
That something is normally an example of the machine in question.

I do make exceptions occasionally. If the machine is sufficiently simple 
that I can figure it out completely in a couple of days, then I might do 
it anyway (I do not own all the HP handhelds covered by the HPCC 
schematics CD-ROM, I borroowed many of them from other members). But I 
could produce a schematic for one of those in an afternoon at most. I do 
own all the desktops covered by that disk, producing diagrams for one of 
those takes weeks.

-tony



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