HP48 Cogo Card - Worth Anything?


Hi all,

I just picked up a nice little HP48GX on Craigslist and was surprised to find a TDS Cogo Card installed. Just wondering if such an item is worth anything. See a bunch of these with crazy prices out on TAS, but not sure if there really is a market.



I strongly doubt there is any interest in them, I have also seen those ridiculous prices - unless as a collector's item practically they are worth nothing. Just about every surveying instrument today has on-board software covering everything these cards do and heaps more. If not for nostalgic reasons I'd have sold my pristine last series HP48GX with 2 Klotz RAM cards, cables and the printer (still with the 2 original boxes thermo paper).


I guarantee it will sell if you start @ $0.99


Well, I was able to get $50 for the card on TAS. $80-50=$30. Not bad for a pristine 48GX methinks!


Sounds reasonable, lucky you.

Possibly Related Threads…
Thread Author Replies Views Last Post
  is a 50g worth buying with future in mind FORTIN Pascal 20 5,907 10-26-2013, 05:04 PM
Last Post: Michael de Estrada
  HP41 Card Reader not Pulling Card Colin Verrilli 14 4,377 07-29-2012, 05:53 PM
Last Post: Randy
  Klotz hp48 card docs David Griffith 0 1,170 03-23-2012, 05:59 PM
Last Post: David Griffith
  Seeking hp48 2MB and 4MB card schematics David Griffith 1 1,132 03-17-2012, 10:14 AM
Last Post: NateB
  WP34S - Worth The Time and Cost? Les Wright 13 3,742 03-07-2012, 06:01 PM
Last Post: Richard Wagoner
  Hp48 mechanical engineering card giancarlo 1 1,190 09-24-2011, 03:26 PM
Last Post: NateB
  Is peace of mind worth $150 ? Michael de Estrada 7 2,145 03-24-2010, 09:43 PM
Last Post: juan demin
  worth it or not worth it ? Alberto Fenini 4 1,422 03-20-2010, 08:07 PM
Last Post: Eddie W. Shore
  non-scientific LED calculator worth more than HP35 red dot? Bart (UK) 6 2,167 02-23-2010, 09:08 AM
Last Post: Eddie W. Shore
  Is an HP-10 worth $700? Michael de Estrada 16 3,805 10-09-2009, 03:13 PM
Last Post: juan demin

Forum Jump: