[sdiy] Future SYNTH-DIY

[Scott E.]

It might not be a bad idea to create a resource list of the components 
that might be recommended for stocking. Anyone wish to start one? 
Perhaps start with the resistor values that should be in anyone's parts 
stockpile. How about caps? Shelf life not as good as resistors?

Scott E.
===================================================================================
Paul Schreiber wrote:

> Well, the directive certainly does NOT prevent folks from tinkering at 
> home in the lab with older, lead-containing parts. So, every start 
> saving $$$ and buy 200ea of all the 5% resistor values, 100ea of 
> common parts (TL072, 1N4148, etc) and we can all be "DIY Hermits".
>
> Also, it does NOT effect older analog synths at all, AS LONG AS you 
> can *prove* the date of manufacture (ie it has a sticker on it). Parts 
> for *repair* (like CEM/SSM chips) are exempt.
>
> What it DOES 'prevent' is shipping the parts/assemblies across EU 
> borders. Just to pick of Doepfer, his boards are stuff in someplace 
> like Hungary and shipping them is a problem.
>
> Also, don't forget there are *3* things to worry about:
>
> a) solder
> b) parts
> c) the pc board
>
> Currently, pc boards that are designed for lead parts are "hot air 
> leveled" with lead-tin solder. You *can't* tin-plate, because tin 
> grows "whiskers". So, the pc board suppliers are going 
> full-tilit-boogie on alternative plating materials.
>
> See this page for TONS of data, scary photos:
> http://nepp.nasa.gov/whisker/
>
> Also, if you do have a lead-free pc board and lead-free soldering, but 
> have a leaded part, the lead contaminates the process and cracks form 
> in the joints.
>
> It a freakin' headache from any angle.
>
> Paul S.
> back to lead soldering....yum
>
>