[Arm-netbook] Use of 2N3904

jm joem at martindale-electric.co.uk
Thu Nov 8 23:08:48 GMT 2012


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

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.








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