Re: Why Adding a Voltage Amplifier after a Transimpedance Amplifier reduce BW? Book Claim by 0.64

Started by John Larkin May 14, 2015
On Thu, 14 May 2015 09:15:53 -0700 (PDT), George Herold
<> 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 >> > <> 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 >> > >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.
ebay usually has tons. Or I can send you a few sheets. I might even include a bit of the gold stuff. -- John Larkin Highland Technology, Inc picosecond timing laser drivers and controllers jlarkin att highlandtechnology dott com