Posts: 113
Threads: 6
Joined: Jan 1970
Vickie,
The PF Pac is not on demand. The Math, Stat, and Math/Stat modules are the most common modules. Other less common modules are Financial, Survey, and Circuits. You can place the PF Pac for sale alone first. If it sells then fine. If not, include it in an auction with the HP41C.
Namir
Posts: 113
Threads: 6
Joined: Jan 1970
You can also try to sell the PF pac here on this website and sell the calculator on eBay.
Posts: 87
Threads: 10
Joined: Apr 2006
The PF module appears with some regularity on eBay (often combined with a calculator), going for about $50 or more. You might try and advertise it on this site. I sold one here last summer, and received about3 serious offers. Factor in no listing fee or commision, plus the satisfaction of offering to a fairly select group of individuals that have helped to sustain interest in these machines.
Posts: 133
Threads: 31
Joined: Jul 2005
Vicki, I second what Miki said. just because it is not advertised, don't think it is not in demand. Up to about six months ago, I was trying very hard to find one for daily use. I finally did, and I think the cost was about 50 dollars.
The pac does have the CON and INCON routines as someone mentioned. It is a cool feature. basically, you enter into the Alpha register the units you want to convert. For example, F-C would convert degrees fahrenheit to celsius. Then enter the number in (say 32) and XEQ CON. The X reg. shows you your answer. To convert back, XEQ INCON (inverse conversion I guess).
I do remember that when new (I was a young petroleum engineering student back then) the pack was more expensive that the Math or Stats pacs. If I remember correctly, it was about $75 or so. The others went for about 35-50 dollars.
Good luck!
12345
Posts: 2
Threads: 1
Joined: Jan 1970
Thanks so much for the info you have shared with me. This is a great group of people !