On Thursday, May 14, 2015 at 11:57:36 AM UTC-4, Phil Hobbs wrote:
> On 05/14/2015 11:50 AM, John Larkin wrote:
> > On Thu, 14 May 2015 04:07:59 -0700 (PDT), Phil Hobbs
> > <pcdhobbs@gmail.com> wrote:
> >
> >>> Oh and I'm fairly certain the non-inverting amplifier is wired up correctly. Between
> >>> switching back and forth from the non-inverting to the inverting configuration
> >>> several times, I am fairly certain that both configurations were wired up properly.
> >>
> >> Hmm... "several times" does make it sound like a solderless breadboard, as John suggested. Those things are slabs of misery, for sure.
> >
> > Someone deserves an IgNobel prize for inventing them.
> 
> They work okay for making a PIC blink a LED, as long as they're new.
> 
> Then of course somebody plugs in a resistor from an old reel without 
> removing the residual adhesive, and two of the holes become flaky 
> forever.  Then the next resistor is maybe oversize, and bends the crappy 
> metal fingers apart, and the one after that is corroded, and leaves 
> semi-insulating dust all over the place....
> 
> Not to mention a couple of pF of capacitance between adjacent rows, and 
> many nanohenries in series with all the (nastily daisy chained) grounds.
> 
> Cheers
> 
> Phil Hobbs
> 
> 
> -- 
> Dr Philip C D Hobbs
> Principal Consultant
> ElectroOptical Innovations LLC
> Optics, Electro-optics, Photonics, Analog Electronics
> 
> 160 North State Road #203
> Briarcliff Manor NY 10510
> 
> hobbs at electrooptical dot net
> http://electrooptical.net

Grin, I was laying out this little pressure circuit for testing the other day,
a few flaky connections later and I grabbed my soldering iron and copper clad.  

I need to order more (copper clad) any decent sources? 

George H.