Greyhawk writes --
<<Spacecraft just don't shake like a four-cylinder
engine.>>
Actually, it is much, much worse. Not on orbit, of course, but on the
rocket ride up there. I have witnessed vibration testing to the spectrum
which these things are qualified -- it makes our prehistoric 4-bangers seem as
smooth as turbines. Roll your stereo down a long flight of stairs and
you'll begin to get a feeling for what spacecraft have to survive.
I asked the electronics guys at work (Aviation Technology Group, makers of
the Javelin Jet) which connectors I should use. They (very apologetically)
told me that the MS38999 connectors were the only way to go. They know
these are the expensive ones -- these guys used to work on kitplanes as well and
know where we're coming from. They told me that I was going to be spending
a pile of money on connectors but that it would be money well spent for
reliability.
It's basically the same thing that Brent is saying -- cheap connectors are
false economy. Use the good ones, and you'll be paying so much for them
that you'll only install them where you really need them.
I do not know if MS38999 connectors (known as "thirty-eight triple-nine"
connectors) are the same connectors as the AMP Circular Plastic Connectors that
Brent recommends.
- Rob Wolf