[Cryptech Core] Alpha hardware status

Fredrik Thulin fredrik at thulin.net
Tue Apr 26 12:54:15 UTC 2016


On Tuesday, April 26, 2016 03:34:36 PM Pavel Shatov wrote:
...
> I think, we will need to de-solder at least FB5-FB7. These are 
> BLM31PG330SN1 ferrite beads. I'm not sure, whether it is that necessary 
> to have replacements for them, can't we just solder them back after testing?

Have you never had a component stick to the soldering iron with you trying to 
shake it off, and then found yourself on your knees looking for the smallest 
thing on the floor? I have ;)

(oh sure, those are larger-than-usual 1206:s, but anyways...)
 
> Speaking of resistors, my guess is that we might need the following:
> 
> 0402 33 Ohm
> 0402 4.7 kOhm
> 
> It may be a good idea to also have spare tantalum capacitors:
> 
> 330 uF / 10 V Case D or X

Thanks. I'll make sure to have some available.

/Fredrik
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