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Travis Foster
i collect calcs yay
 •  1-year club

Collection Calculators Accessories

Quick facts:

  • Count: 27 graphing calculators (18 distinct models) View collection picture
  • Total weight: ≈ 6.9 kg / 15.2 lbs.
  • By series: 24x TI (18x Z80, 3x eZ80, 2x Nspire, 1x 68k), 2x Casio, 1x HP
  • Oldest calculator: a TI-81 manufactured in July 1993
  • Newest calculator: a TI-84 Plus CE Python manufactured in March 2024
  • Achievements:
    • Total earned: 17 achievements (1 secret achievement)


Model Factory Datecode HW Rev. Serial number Software version(s) Physical condition Extras Acquisition date Pic Comment
TI-84 Plus C Silver Edition
K 0414 H 1154200215 4.2 Good Faceplate(s) 2017
TI-84 Plus C Silver Edition
K 0113 pre-A 1014036430 4.0 Fair Faceplate(s) 2023 Screen has a small scratch.
TI-83 Plus Silver Edition
S 0403 C 2094024563 1.16 Good 2023
Casio fx-9750GIII
C838BXC225706BB_22 03.70.3200 New 2023
Casio fx-CG50
C810A6C069725CB_62 03.80.0212 New Box 2023
TI-Nspire CX II
M 1221 AP 4A17904247 5.3.2.129 Good 2023
TI-84 Plus
L 0318 AC 1035055084 2.55MP Good 2023
TI-81
I 0793 D 0711960 2.00 Fair 2023 "McDaniel" etched into the back. Has a column of pixels that don't show as dark.
TI-89 Titanium
S 0205 B 2114007349 3.01 Fair 2023 Back is scratched up. Battery replacements since acquisition: 1.
HP 39gs
CNA92102643 HP-39E (no revision) New 2023 Had to open it because batteries were beginning to eat through the packaging.
TI-82
I 0497 R 54200758 19.0 Good 2023
TI-84 Plus CE Python
Galaxy Gray 
L 0123 AA 1015010550 5.8.0.0022 Good 2023 Damaged slightly after opening for PCB pictures.
TI-84 Plus CE
L 0515 A 1053012535 5.0.1.0012 Fair 2016 One rubber pad is missing.
TI-83 Plus
S 0203 C 2361026284 1.00 Worn 2023 Heavy scratches on the back and slide case.
TI-Nspire CX CAS
P 0315 U 2475005928 4.5.4.48 Poor 2023 NAND flash might be failing -- OS suddenly disappeared
TI-84 Plus Silver Edition
S 0507 H 2395054269 2.40 Good Faceplate(s) 2024
TI-83 Plus
P 0410 L 3171026506 1.19 Fair 2024 No sliding hard cover.
TI-85
I 0597 I 55002829 10.0 Good 2024
TI-83 Plus
S 0407 K 2841027824 1.19 Fair 2004 Amusingly labelled as a TI-84 at the store.
TI-84 Plus CE Python
Bright White 
L 0324 AA 1035001833 5.6.1.0006 New 2024 From Back-to-School event at Target.
TI-84 Plus
School Property
K 0114 Z 1815090553 2.55MP Fair 2024 Some markings and discolouration are present.
TI-83 Plus
S 0607 K 2864108506 1.19 Good 2024
TI-83 Plus
I 0400 A 1193052971 1.12 New Manual(s) 2024 *Technically* not new in box, as the original batteries had to be removed, necessitating opening the box.
TI-83 Plus
P 0410 L 3171051357 1.19 Good 2024 Meh. These are $3 a pop at my local secondhand electronics store. Why not?
TI-84 Plus
S 0406 F 2264069896 2.40 Good 2024 Came with a TI-83 Plus slide case, for some reason.
TI-83 Plus.fr
P 0308 L 2955090270 1.19 Good 2024 Power button requires a bit of extra force to trigger
TI-73 Explorer
New 84-style
P 0110 I 2611005377 "Graph Explorer Software 1.91" Worn 2024 No rubber bumpers. Many marks on inside of slide case. Some buttons have been worn.