Hp 48GX Black or Blue Display?

[Jonathan Busby]

(12-04-2023 08:32 AM)Hiwi Wrote:  The 48G is a 'Made in Indonesia' with blue display,

Interesting... Can you post the serial number?

Quote:The HP48 is 'Made in USA' which had a poor low contrast display.

If it has a low contrast display, then it was a very early model from around 1994, with a display that was perhaps the same part as used in the HP48SX as HP was transitioning from manufacturing HP48S/SXs to HP48G/GXs at the time ( In fact, and maybe this isn't accurate, but I think around 1993, HP had transitioned to a universal PCB that could accommodate either a Clarke or Yorke SoC and that very late production runs of the HP48S/SXs and very early production runs of the HP48G/GXs used the same PCB. I have a vague memory of Dave Arnett or someone else from HP mentioning this, but I can't be sure... Here's Dave on the subject : " In fact, the G-series circuit board is equipped to build either an S-series OR a G-series on the same PCB. )

If the above calc has "Made in USA" abutting the serial number to the left, then I'm afraid that its collector's value has been harmed by the screen replacement I've only seen one HP48GX that has the blue, low contrast SX-like display. These were very early models that were made in 1994, in the US ( Corvallis? ), before HP transitioned to manufacturing their calcs in Singapore.

Regards,

Jonathan