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rechlin

Eric Rechlin — Houston, TX, USA

Collection

Quick facts:

  • Count: 25 graphing calculators (13 distinct models), 11 of which are prototypes (8 distinct models)
  • By series: 14x HP-ARM, 10x HP-Saturn, 1x HP-Other
  • Oldest one: N/A
  • Latest one: N/A

Calculator model Factory Datecode HW Rev. Serial number Software version(s) Physical condition Extras Acquisition date Pic Comment
CNA61100011 Good 2006-03-24 From initial production run (not for sale)
HP 50g Proto
none Good With gold bezel but black faceplate
CNA71002938
CNA85000530 Good
HP 39gII Proto
38/45 15/jun/20[11] Very early prototype, all keys gray with white labels, 2011.03.07
HP 39gII Proto
62/150 24/jun/20[11]
HP 39gII Proto
57/150 Broken Disassembled, broken screen, wires with headers soldered in for debugging
ID00201294 Broken Looks brand new but does not turn on
SG71107379 Good 1997 My second 48GX. With MetaKernel card and RAM card
ID10900125 Good Black (not blue) screen
HP 48GX Proto
none Broken Heat stakes unmelted, with EPROM, does not turn on (EPROM probably clear)
CN03100183 Good
HP 49G Proto
1D91200088 Good 1999-05 Gray back, dark slide on cover
CN03408580 Good
3104A00768 Revision E Good
3045A01093 Revision E Good
HP 48gII Proto
none 1.23 Fair 3 battery version, heat stakes unmelted, silver wearing off faceplate in one area
CNA51506191 Good
CN33402625 Good
HP 49g+ Proto
none Good Heat stakes unmelted, 3 batteries but with 50g style keyboard, "QA Sample 04.8.5", probably early 50g prototype
2951A15745 Fair Slightly broken case around battery door
4CY34307J7 Good Late prototype (2013/07/09): "bottom case color change (black)", control number 062
none Good Early prototype (white back, silver strip on sliding cover), 2013/05/27, control number 385
HP Xpander Proto
New in box
9CJ64402PY Good Revision C