[hpsdr] So I ordered an atlas, preparation is in order

[Dwayne L]

which precautions in particular for static?

I good advice on the floor, I think I will relocate to the kitchen so I have access to a smooth floor.

For magnification, what works well for folks with glasses? I am not really blind, but wasn't sure if I needed something to use with my glasses or could get away without (never tried).

--- On Thu, 7/15/10, Tim O'Rourke <w4yn at earthlink.net> wrote:

> From: Tim O'Rourke <w4yn at earthlink.net>
> Subject: Re: [hpsdr] So I ordered an atlas, preparation is in order
> To: "Dwayne L" <wraithx at yahoo.com>, hpsdr at lists.openhpsdr.org
> Date: Thursday, July 15, 2010, 2:45 PM
> The SMD parts on this board are not
> too difficult to handle, get a good pair of tweezers
> designed for smd, the have a small undercut to assist in
> holding flea size parts and keep from launching them. Claen
> floor and work bench in case one gets away.
> Use fine solder .015 or .032 max I like Kestler multicoe, I
> do not use lead free.
> Apply thin layer of solder to 1 pad only solder that one
> leg or side while holding park in correct location. Press
> down on part and resolder the pad you just did, seats part
> against board. Continue to other side or legs of part. Use
> magnifier head set it helps.
> NUMBER ONE before you start to install the card sockets
> double and tripple check orientation of pin 1 so that all
> the card slots are orientaed corerectly before soldering
> them on board. Solder on pin and then reheat that pin while
> pressing card holder against PC board. Check oriendation one
> more time before soldering all the contacts. Of you get a
> card 180 degrees off you might just as well order an new
> Atlas unless you have a good vacuume desodering station even
> with this and multilayer board you may destroy the plated
> through holes getting that socket off.
> Take static precautions with regulators and check
> orientation before soldring.
> 
> Tim W4YN
> 
> -----Original Message-----
> >From: Dwayne L <wraithx at yahoo.com>
> >Sent: Jul 15, 2010 11:49 AM
> >To: hpsdr at lists.openhpsdr.org
> >Subject: [hpsdr] So I ordered an atlas, preparation is
> in order
> >
> >***** High Performance Software Defined Radio
> Discussion List *****
> >
> >Thanks to the folks that answered my previous
> questions, and I apologize for not following up right away.
> >
> >I was skimming the assembly manual, and I was curious.
> I just noticed the caps were polarized, which was my first
> question. Darn thorough instructions! Is there any real way,
> other than starting to plug everything else in to test that
> I didn't goof up? I'll probably have this guy done long
> before I start ordering more.
> >
> >On the scale of difficulty, it doesn't look terrible,
> but I do know I have to wrap my brain around the idea of
> "small".
> >
> >Does anyone have any tips or ideas on tools of the
> trade? I've built stuff before, mostly heathkit stuff. Never
> done surface mount other than tapping boards for test leads
> and voltage modifications (gotta love nvidia video cards).
> I'm ordering a real soldering station, instead of my little
> 15 watt rad shack special, but not sure if it will be here
> in time.
> >
> >
> >-----------
> >There are 10 kinds of people in the world...
> >those who understand binary, and those who don't
> >
> >
> >      
> >_______________________________________________
> >HPSDR Discussion List
> >To post msg: hpsdr at openhpsdr.org
> >Subscription help: http://lists.openhpsdr.org/listinfo.cgi/hpsdr-openhpsdr.org
> >HPSDR web page: http://openhpsdr.org
> >Archives: http://lists.openhpsdr.org/pipermail/hpsdr-openhpsdr.org/
> 
> 
> Tim O'Rourke 
> W4YN at ARRL.Net
> Low Power Amateur Radio Rocks 
> Member of Flying Pigs,ARCI,GQRP,RSGB,ARRL Life Member
> NHRA Life Member
> 


      

 1279226455.0