[sdiy] "obsolete" 2N3906

[Jim Patchell]

	I dread the demise of thru hole parts as well, more or less for the 
same reasons.  I just consider them easier to work with (I have worked 
with both).  However, when I do circuits profesionally, they are as 100% 
surface mount as I can get them.  This is because of manufacturing cost. 
  The assembly cost of a surface mount board is far less than thru hole. 
  For home projects, I am still 100% thru hole.  Although, I am planning 
a board that will have to have surface mount parts on it (because that 
is the only way you can get them).  As far as getting a design bang-on 
right from the schematic capture stage...well, I personally do pretty 
well.  I consider a board with no cuts and jumpers as bang-on right, and 
I can do that about 50% of the time, but I rarely get the component 
values correct 100% of the time.  There are generally a few resistor 
values I have to tweak.  And sometimes (rarely most fortunately) I will 
completely blow it on the schematic.  In fact, I am going into my 
workshop in just a bit to do some cuts and jumpers on my latest board (a 
midi->cv converter).

Colin f wrote:
> 
> 
> I dread the day when thru-hole components are all gone, and I have to
> prototype a circuit by going straight to SMT.
> The ease with which you can experiment with a thru-hole circuit on
> stripboard is far greater than re-working an SMT board.
> Final tweaking of circuit values by ear would not be something surface
> mount lends itself to IMHO.
> Or does everybody else get their designs bang-on right from the
> schematic capture stage ?
> 
> Colin f
> 
>