[time-nuts] Remove Pictic boards from envelopes

[GandalfG8 at aol.com]

In a message dated 06/08/2010 16:15:40 GMT Daylight Time,  
ed_palmer at sasktel.net writes:

You mean  they are tinned?  I received my two boards a couple of days  
ago.  I thought that they missed the tinning solution.  There's  just an 
occasional splash of bright tin here and there, particularly on  the 
back.  The rest looks like oxidized copper.  I haven't tried  to solder 
them yet.  Hope the rosin cuts through  it.


-------------
That's what I first thought when mine arrived but found that rubbing with  
a soft pencil eraser removed the discolouration to leave them looking  
tinned again.
I did notice that some of the non discoloured tinning had a matt finish  
rather than shiny as expected so not sure if this was envelope contamination 
or  a processing issue.
After buffing with the eraser I washed the boards in warm soapy water  just 
to be sure and they continue to look ok.
 
regards
 
Nigel
GM8PZR