Re: LED and PCBs

On 13 Mar 2006 10:07:48 -0800, veeduber@xxxxxxx wrote:


Stuart & Kathryn Fields wrote:
I've used ExpressPCB where you layout your printed circuit on on your
computer (easy to use free software download) send it to them over the
internet, and for $63 get three two sided circuit boards with plated thru
holes.
------------------------------------------------------------------------------------

For comparison, All Electronics (www.allelectronics.com) will sell you
a 6x12" piece of copper clad circuit board for five bucks. That's
enough to do a dozen nav lights. It's single-sided but that's all that
is needed for such a simple circuit.

They will also sell you the etchant ($4). And Tinnit (if you wanna use
it).

Bottom Line: If you spend more than a buck per board you simply don't
understand the motivation behind Flying on the Cheap, which is the fact
that the median income in the United States is less than thirty grand a
year.

Yah Bob, but Median is not nearly as meaningful as average and I'll
bet average is below median. Then again it depends on how they
calculate median. Is it against individual incomes, or do they place
incomes into groups. The US is one of the few places that uses median
while most of the world uses average.

At any rate, on the lights, how about using a plastic ball cut in
half. Just drill the holes and tie the leads together on the back side
and then pot it with epoxy or resin. You don't even need the circuit
board.

Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair)
www.rogerhalstead.com

-R.S.Hoover
.

Relevant Pages

  • Re: Television Salvage
    ... CitizenRuth wrote: ... > grabbed all the circuit boards, plus the speakers and what I believe ... You're going at learning about electronics the right way. ...
    (sci.electronics.basics)
  • Re: Television Salvage
    ... > grabbed all the circuit boards, plus the speakers and what I believe is ... Do I desolder everything one a time and put in bins? ... > level electronics text and am discouraged by the calculus needed to ...
    (sci.electronics.basics)
  • Re: Voltage loss over many circuits
    ... I'm an ME and I'm trying to drive a large number of circuit boards in ... The problem is that there are almost 100 of the circuit ... My voltage is dropping so much that it is causing logic ... Attempt to add a small resistance to the closer loads to drop the voltage to about the same as the furthest ones then up the voltage from the supply slightly if you can. ...
    (sci.electronics.basics)
  • Re: Schematic preferences
    ... the callouts when a circuit involves several schematic sheets! ... traversed 6 or 7 different circuit boards. ... I still have and use a D-size diazo copier! ...
    (sci.electronics.design)