HP 48G - PCB for 512K RAM upgrade



#2

I have looked at some of the various RAM upgrade sites on the net. For the addition of a 512K chip, there seems like one needs to put it on to a PCB of some type.....however, I haven't been able to find any information about the PCB (like whether it can be bought ready to use or whether it has to be hand-made). Can anyone give me the story about it? Thanks in advance.


Possibly Related Threads...
Thread Author Replies Views Last Post
  42S with nonvolatile RAM Lyuka 5 2,489 12-13-2013, 08:52 AM
Last Post: Lyuka
  Best way to test HP-71B RAM modules (the 32K/96K ones etc.)? Philippe Lasnier 4 2,054 09-25-2013, 09:54 AM
Last Post: Philippe Lasnier
  HP 2225D+ RAM failure/replacement Luca 4 1,618 09-10-2013, 01:46 PM
Last Post: Luca
  Questions about building a RAM card for hp 48 Waon Shinyoe (China) 0 926 07-09-2013, 09:53 PM
Last Post: Waon Shinyoe (China)
  Riemann's Zeta Function update (HP-28S, HP-48G/GX/G+, HP-49G/G+/50g) Gerson W. Barbosa 0 872 06-30-2013, 01:01 AM
Last Post: Gerson W. Barbosa
  OT: DIFFERENTIAL EQUATIONS using the HP-48G/GX Ivan Rancati 2 1,161 06-04-2013, 04:11 AM
Last Post: Frank Boehm (Germany)
  Updated HP-41 Flex-PCB replacement guide. Diego Diaz 2 1,123 03-12-2013, 12:36 PM
Last Post: Diego Diaz
  Almost totally OT: Looking for Sharp EL-9900G ROM upgrade Marcus von Cube, Germany 3 1,361 03-03-2013, 09:35 AM
Last Post: Marcus von Cube, Germany
  HP10BII+ question (ROM upgrade is possible?!?) Csaba Tizedes (Hungary) 6 1,956 02-21-2013, 05:19 PM
Last Post: Eric Smith
  Able to set HP 48G axis tick marks at integers? Randal B 1 884 01-24-2013, 12:40 AM
Last Post: Chris Dreher

Forum Jump: