HP 71B RAM: has anybody big ones to sell?

[Paul Berger (Canada)]

(06-19-2021 01:24 AM)rprosperi Wrote:  

(06-18-2021 11:28 PM)Dave Frederickson Wrote:  Well, there's Matthias' 160k HHP module as proof that they exist.

I'll believe it just after I see it in person. Which will hopefully be in late 2022, when the Alschwill meetings will likely resume.

It would definitely be doable with the second generation HHP sub-assemblies that use 32K SRAMs, with those they put a SRAM and the control chip on both sides of the board, probably the only thing that stopped them from making a 192K module is the stack was probably too thick.

Paul.