Electronics Forum / Design / July 2008

I have installed a number of these compasses on identical boards, and
I've found that not only do their measurements differ, but also even
the range of values.
at the same position and direction, they give significantly different

See Bill Sloman, as I stated South of France being radioactive does not bother the French anymore,
it is normal.
http://news.yahoo.com/s/a,p/20080708/ap_on_re_eu/france_nuclear_leak
It is 'only' 30000  liters of non enriched (oh well :-) ) uranium.

What are the typical price differentials between 2,4,6 and 8 layer
boards?
Dirk

visit www.mechanicalebook.com an online handbook for mechanical
engineers, visit the video section to explore interesting video
clippings.

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I’m trying to build an automatic recording unit, for a 3V recorder.
I’ve done it before, about 20 years ago, but I can't find it or the
schematics anymore...
I've found this scheme several days ago, built it - but it doesn't

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I've imported the CSV bom from my schematic program into open orifice,
done hyperlinks to the component with the worst priced distributor
(RS/Farnell) in the next column....no problems with that
Now wouldn't it be nice if I could  set up the next column with their

SMT100 PDF datasheet
Refer to http://www.chinaicmart.com/series-SMT/SMT100.html
The electrical characteristics of a SMT100 device are similar to that
of a self-gated Triac, but the SMT100 is a two terminal device with no

Is there any way by which i can generate sound effects generated by
musical ics like UM66 and many other similiar ICs. I want to generate
police siren, Jingle bell and happy birthday sounds. Can these sounds
be generated by PWM? I read that these ICs have ROM in which sound

Recommendation for RF Prototype "Vector Board" with groundplane needed
I am looking to prototype a couple of small boards containing LINX
TXM-433 LC and LR transmitter modules. These have pads on 0.1" centers
and thus will match the Vector board strips that I am familiar with.

Fascinating reading:
http://www.irf.com/technical-info/appnotes/an-948.pdf
(found from here:  http://sound.westhost.com/articles/hexfet.htm)
I've heard that the 2SK1058 is superior for audio, and is the only

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