[Arm-netbook] Use of 2N3904

[luke.leighton]

On Thu, Nov 8, 2012 at 11:08 PM, jm <joem at martindale-electric.co.uk> wrote:
> Hi,
>
> I'm helping out with design checking
> http://rhombus-tech.net/community_ideas/kde_tablet/news/
>
> Can anyone tell me the price advantage of 2N3904 over a 2N7002 (Far East
> pricing).
>
> The changes as example to section with Q3:
> 1. replace 2N3904 with 2N7002
> 2. remove C160
> 3. remove R58
> 4. Change R56 to 100K
> 5. Change R61 to 10K

 ahh, you're a star.  ok i take it that's for the NRESET transistor as well?

> would make the circuit work equivalently and less prone
> to effects of touching and hand grease finding itself
> on the PCB and adversely affecting circuit.

 superb.  thanks joe.  wouldn't occur to me, that :)

 ... would you be willing to look at the audio (transconductance amp)
and the mosfet h-bridge one as well?

l.