Whitechapel CG-200 - test-drb@ccmp.vtda.org

19 Jul 2005

...
 From: ard at p850ug1.demon.co.uk

 On Mon, 2005-07-18 at 17:28 -0700, Vintage Computer Festival wrote:
 > On Mon, 18 Jul 2005, Jules Richardson wrote: 
Having now managed to see said pictures, I wonder if the CPU is on the 
daughterboard. In particular, could the PGA package be something like a 
32032? The other 2 'intersting' chips on said board might be an MMU and 
FPU or something. 

  Hmm, the vinegar trick should probably go in the
FAQ (along with the
 fact that it tends to remove ink on ceramic chips - found that one out
 the hard way once!) 
I find citric acid more pleasant to use than vinegar, and just as effective.

-tony

Hi Tony
 The vinegar has the advantage that it will evaporate
over time while the citric acid requires good cleaning.
Of course, even with the vinegar, the salts created
by neutralizing the alkali from the battery needs to
be removed so citric acid may not have any an issues.
Dwight