*bites and pulls the sleeves*
 •  1-year club

Collection Calculators Accessories

Quick facts:

  • Count: 73 graphing calculators (45 distinct models), 5 of which are prototypes (5 distinct models) View collection picture
  • Total weight: β‰ˆ 21 kg / 46 lbs.
  • By series: 10x TI-68k, 26x TI-Z80, 4x TI-Nspire, 7x HP-ARM, 1x Casio-SH3, 6x Casio-SH4, 9x HP-Saturn, 1x Casio-Hitachi, 2x Casio-V30MX, 4x TI-eZ80, 1x Sharp, 1x KLT, 1x Golden
  • Oldest calculator: a TI-82 manufactured in February 1996
  • Newest calculator: a TI-Nspire CX II CAS manufactured in September 2019
  • Achievements:
    • Total earned: 23 achievements

Model Factory Datecode HW Rev. Serial number Software version(s) Physical condition Extras Acquisition date Pic Comment
I 0400 D 2.09 Fair 2022-01-04 Keyboard cover lost. Contrast of the screen is lighter than another TI-89 I have.
P 0612 L 3.10 Worn 2021-12-07
I 0202 A 1380V04340 2.09 Good 2021-04-14 Some blank vertical lines on LCD(varies from 4 to 7)
(EDIT: It has more broken lines now)
I 0904 G 2.09 Good 2022-03-18 Slight corrosion on battery contacts on PCB.
I 1103 B 1.19/Boot 1.00 Good 2019 The third graphing calculator I get in my life.
S 0305 C 2.55MP/Boot 1.02 Worn 2020-09-22 This one has a TA3 ASIC. Has scratches on screen. Keyboard cover lost.
K 1111 pre-A 2.55MP/Boot 1.03 Good 2021-08-05 This one has a TA1 ASIC.
(EDIT 23/04/25: It has 4 missing horizontal lines on the top & 1 missing vertical line on the left :'( )
K EVT-001 1.19/Boot 1.01 Good 2021-08-03
S 0303 B 1.19/Boot 1.00 New 2021-03-30 It has its LCD ribbon cable replaced due to abnormally long LCD delay caused by bad ribbon cable. The LCD board is now connected to MB by several coated silver wires.
I 0104 B 1.19/Boot 1.00 New in box CD(s) 2020-12-04 Screen is of low contrast. The LCD is nto well-aligned to the case.
I 0899 C 2.09 New 2021-07-11
I 0801 K 1.6 Worn 2021-07-11 It has 2 unstable horizontal lines now.
(EDIT: It has much more broken lines now)
N 0919 AI New 2020-10-25
C 2.1.14588 New 2021-05-24
? 02.01.0200 New 2020-08-01 Previous owner has flashed the OS of fx-9860GII into it.
? 02.02.2201 New 2020-07-28
HP48-R Good 2021-07-01 Had been taken apart to repair the ON-key issue.
Good 2021-02-18
Good 2021-05-12 Have the battery door semi-broken.
HP48-R Broken Manual(s) 2020-09-06 Have the front half of case swapped with a broken HP 48G due to the damage I made to its original one. It has a faulty port 2, too...
(EDIT 23/04/23: It does not turn on now...)
HP48-R New 2020-10-13
HP49-C New Manual(s), CD(s) 2020 Weird noise comes out if I shake it.
It needs 3 AAA batteries only.
HP48-C New 2020 It needs 4 AAA batteries instead of 3.
? 02.02.0201 Fair 2021-12-03 Keyboard cover lost
Broken 2020-09-12 Technically not broken, but most keys have connection issues.To make it work, I have to apply pressure to its front panel near screen. Bad physical condition.
Has name "MICHAEL CORSANO" etched below screen and "MC" on the back.
Fair 2020-10-10
Fair 2020-10-10
? Fair 2020-11-27 Rounded white case
? Worn 2021-04-22 The divide key is broken. It looks good anyway.
(EDIT: carbon trace is degraded)
(EDIT 23/04/23: It's been repaired)
New 2020-10-22
Worn 2018-12-29 This is the first calculator I get in my life. I spent 2 years on programming it. It's buggy but powerful.
I 0202 A 1380V04139 2.09 Good 2021-12-24 Some blank vertical lines on LCD(varies from 0 to 1)
I 0202 A 1380V01969 2.09 Good 2019-04 The second graphing calculator I get in my life.
I 0202 A 1370V04502 2.09 Fair 2020-08-18 Some blank vertical lines on LCD(varies from 0 to 3)
Worn 2020-11-20 Battery door lost. I bought it for its screen but kept it somehow.
? Poor 2022-04-18 Keyboard cover lost, leaked LCD.
(Edit 23/09/01: I broke the LCD when trying to replace its back polarizer...)
S 0305 C 2.55MP/Boot 1.02 New 2022-05-09 This one has a TA3 ASIC. A bit yellow on the top, decent otherwise.
K EVT2-177 OS/Boot 1.1 EVT2 #2004 Good 2022-05-13 OS base address is $030000 rather than $010000 (Zeroko finds this). USB is not working. Assembly programs cannot return to OS safely. Has a special exception handler that shows all registers. All FLASH sectors are unprotected(see left one in the picture).
S N/A H 2.40/Boot 1.02 New Faceplate(s) 2022-06-15 This one has a TA1 ASIC.
It has green-ish yellow keyboard cover, screen surrounding, faceplate and keys.
It has severe corrosion on the lower half of the PCB, thus several keys are not functioning. (Edit: Someone helped me fix it, and it's now functioning correctly.)
It has no serial on the back. The factory and HW information are speculated (Thanks LogicalJoe)
(Edit: Added a photo taken by the seller)
K 0413 A 4.0/Boot 4.0 Good Faceplate(s) 2022-06-20 It's so pink!!!
L 1117 L Good 2022-07-06 It has a very crappy LCD screen, which uses dithering to emulate more colors.
It is a bit slower than the prototype 83PCE I have.
S 0605 C 2.30/Boot 1.02 Good 2022-07-22 This one has a TA3 ASIC.
L 0216 C Worn 2022-08-20 The screen protection layer got pressure marks from keyboard cover. It has a better LCD than later models.
S 0305 B 2.30/Boot 1.02 Fair 2022-08-18 This one has a TA3 ASIC.
Bought for documentation, PCB picture merged by Adriweb.
HP48-P Worn 2022-08-08 It has a very broken screen. Other parts(including keyboard) are working as expected. Comes with COGO48 ROM card and keyboard overlay.
(EDIT 23/04/23: It has been repaird using the LCD from my other 48GX, after I changed its polarizer.)
DVT2.0 1326 1.1.8408 2007-04-04/Boot1 1.1.8129/Boot2 1.1.8310 Fair 2022-09-12 `P1R2-DVT2.0- 1326` in the serial field.
Keyboard cover and battery door lost.
It has corrosion on battery contacts.
LCDB: P1R2/P3_LB_PVT_2430
MB: P1R2_DVT2_MB_6423
KB: P1R2_DVT2_KB_2423
S 0304 pre-A 2.53MP/Boot 1.00 Fair 2022-09-23 This one has a TA2 ASIC.
Has a scratch on screen.
Has a worn and dirty slide case.
Previous owner had disassembled it and attached two metal strips to battery contacts on PCB.
K 0109 N 2.43/Boot 1.02 Good 2022-08-01 This one has a TA1 ASIC.
Bought for documentation but I decided to keep it for a bit longer :P
K 0514 H 4.2/Boot 4.0 Fair 2022-08-29 Smells like shampoo.
Took me hours to clean the inside.
P 0612 L 2971001927 3.10 New 2022-10-06 Some battery fluids got onto the PCB.
It is just so shiny I love it.
S 0906 K 2785000965 1.19/Boot 1.01 New 2022-10-10 This one has TI-738X & T6K04.
The battery contacts on PCB is severely corroded, but luckily it still powers. (EDIT 23/07/22: It doesn't turn on now :( )
There are some very grossy substances in the case, but luckily most of them are cleaned.
Name: Exilia
S 0303 K 1.6 Good 2022-10-19 It looks okay, but 3 keys at the bottom right do not work.
(EDIT 22/10/29: soldered a tiny wire and it works now. Thanks Zeroko for keyboard wiring information)
02.04.0701 New 2022-10-29 It's so cheap(8$) I failed to stop myself.
New 2022-12-08 This one has a green case.
It's probably never used, the little warning sticker in battery compartment is still there.
03.60.0202 New 2023-03-09 My first CASIO Prizm calculator.
I 0797 C 1.3 New 2023-03-22 It was sold for parts only, but it's actually working perfectly.
New in box but without the box.
K 0212 pre-A 2.55MP/Boot 1.03 New 2023-03-22 Rubber pad is degraded, covered with duct tape by seller; ON key is worn out. Decent otherwise.
8D000314 Broken Box, Manual(s) 2023-04-23 15USD for a new-in-box EL-9900... I just couldn't resist this.
(EDIT 23/04/25: It quickly developed unstable lines after I recieved it :/)
(EDIT 23/06/25: Now it does not turn on)
2.09 Fair 2023-04-26 It has 2 unstable vertical lines.
Has a sticker from its past owner on its back, covering serial and datecode.
Slightly degraded reflective layer.
S 1004 A 2.21/Boot 1.00 Fair 2023-05-04 Corrosion in battery compartment and PCB. Sometimes it refuses to turn on.
P 0610 B 1.1.8916/Boot2 1.4.1571 Worn 2023-05-04 Previous owner has installed ndless on it.
Keyboard cover lost.
Good 2023-05-04 It's basically a CASIO ES clone.
It *can* graph and it is programmable,
It looks like an E-dictionary.
S 0806 PVT1.1 00677 1.0.554 2006-08-28/Boot1 1.0.526/Boot2 1.0.526 Fair 2023-05-24 `00677 PVT1.1 S-0806` in the serial field.
MB: PH1_MP_MB_6441
KB code unknown.
Worn It's actually an E-dictionary, but it has TI's graphing calculator ROM built-in which looks & feels like TI-81's.
The reflective layer of the LCD is deteriorated, but I can still see what's on the LCD if the light is strong enough.
Probably has a Toshiba T6A43 ASIC in it.
LCD resolution is 128x64.
New Box, Manual(s) 2023-06-17 A 9$ HP-Saturn calculator.
L 0315 New 2023-07-14 It's so new and shiny I love it.
My first pre-A CE.
P 0417 I 2225012735 Fair 2023-07-22 No keyboard cover or battery door.
(Thanks LogicalJoe)
K 0113 B 2.55MP / Boot 1.03 New 2023-07-29 I know I said "no more 84 Pockets" bit this one is so new & fairly cheap so I bought it.
OS 02.00.4200 Fair 2023-08-18 Degraded backlight(yellowed on both sides of the screen).
Pretty dirty.
K 1111 pre-A 2.55MP / Boot 1.03 Worn 2023-10-08 Scratches on LCD protector
Corrosion on MB battery contacts, fixed with Aluminum foil tape
I 0402 A Broken 2023-10-09 Perfect physical condition
Doesn't turn on
Comes with a bag
I 0296 R Good 2023-10-18 Sold for parts; It has some unstable lines, but it works
L 1016 pre-A / Boot New 2024-01-21