[time-nuts] TAPR TICC boxed (input protection)

Charles Steinmetz csteinmetz at yandex.com
Tue Apr 11 07:04:55 EDT 2017

David wrote:

> I ended up qualifying 2N3904s based on manufacturer and lot and I
> think we ended up using ones from Motorola.  I wish detailed process
> information like National had was available from every manufacturer.

It is, if you ask the process engineers for it.  (From the Big Boys, 
that is.  These days it seems discrete devices are being fabbed by 
dozens of "garage" operations.  I can't speak for them, and wouldn't 
think of buying product from them.)

Best regards,


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