On Thu, 14 May 2015 09:15:53 -0700 (PDT), George Herold
<gherold@teachspin.com> wrote:
>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.