older HP calculators
|
07-06-2017, 02:31 PM
Post: #1
|
|||
|
|||
older HP calculators
I bought two calculators from an instructor. For sure, one is a 28c---it opens kind of like a book with a spine.
Does anyone know if there was ever another calculator that had such a "spine" as a connecting tool to hold two pieces together? I'm trying hard to remember what the model name was for the other calculator I bought. By the way, this event goes back to 2001 which is why I'm so foggy about the situation. Much thanks, katyb |
|||
07-06-2017, 02:43 PM
(This post was last modified: 07-06-2017 02:46 PM by SlideRule.)
Post: #2
|
|||
|
|||
RE: older HP calculators
GOOGLE® HP Champion series calculator
18c 19b 19b II (3 variants) 28c 28s for HP folding models however, for the sake or full inclusion, other manufacturers also marketed folding {w/ a central spine} calculator(s), both horizontal & vertical. BEST! SlideRule |
|||
07-07-2017, 12:31 AM
Post: #3
|
|||
|
|||
RE: older HP calculators
If you want to really appreciate them, you have to see the beautiful images Keith Midson took at https://www.flickr.com/photos/keithmidso...020558518/
Alan |
|||
« Next Oldest | Next Newest »
|
User(s) browsing this thread: