[time-nuts] FE-5680A Breakout board

Attila Kinali attila at kinali.ch
Sat Jan 14 10:21:57 EST 2012


On Fri, 13 Jan 2012 09:59:03 +0000
"gonzo ." <cadbloke at hotmail.com> wrote:

> yes, I'm certainly getting the boards made where production is cheap.
> Other things seem to be cheap there too; like used Rb Osc!
> 
> I'm paying just under $3 per board (double sided, plated through, solder mask both sides, silk screen both sides).
> If it wasn't for that, I wouldn't be able to sell them for $10 with components.
[...] 
> I've sent you the CAD files so you can have a play.


Thanks a lot! I had a look at the files... The lowest i get is
eurocircuits with apporx 9EUR/pce @ 10 pieces and 5.5EUR/pce @ 20.
There is no way i can match your price at these low batch sizes.
Much less with the parts too...


BTW: How hot does IC2, the TS1117 run? It seems to have an awfully small
cooling copper area.

BTW2: Your board is marked as 15V input voltage. But the LM137 needs
>2V voltage difference at these currents. Ie it needs at least 17V if
not 18V input voltage.

			Attila Kinali


-- 
Why does it take years to find the answers to
the questions one should have asked long ago?




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