Anybody have any need for these? They're almost identical. Rev. D (4/82) and Rev. E (8/84). Found these in the office and haven't had a 41C for almost 25 years.

I always thought they were useful because besides containing operational instructions; they also include the mathematical formulae that the calculator was performing.
Anyway, drop me an email if you're interested.
just sent you an email
I can explain it to you, but I can't understand it for you...
Also sent you an e-mail.
SHG
> Anybody have any need for these? They're almost identical. Rev. D (4/82) and Rev. E (8/84). Found these in the office and haven't had a 41C for almost 25 years.
>
> 
>
>
>
> I always thought they were useful because besides containing operational instructions; they also include the mathematical formulae that the calculator was performing.
>
> Anyway, drop me an email if you're interested.
Looks like I am too late. I could use an extra copy though.
SJ
> Looks like I am too late. I could use an extra copy though.
>
> SJ
The only reason I beat you to it is that I have a Twitter feed on my smart phone, every NEW thread here generates a Tweet, I saw this come across and immediately e-mailed Paden.
Another poster here graciously copied his manual a few years ago for me, BUT I have been searching for one of these orginal manuals for years to replace the one that I loaned to someone years ago. I think I bought my original HP41 and Survey Pac module in 1980, so this manual is slightly newer than my module, BUT I don't think there were any hardware changes.
Appreciate the generous offer Paden, looking forward to receiving the manual.
SHG
http://www.hp41.org has more info than anyone ever dreamed existed...
The mailman brought me a present today, thank you again Padden!
SHG
Today was my 1st day back in the shop in 10 days. My 41 book was waiting on my desk!
Thanks again P.C.
I can explain it to you, but I can't understand it for you...