Re: [DIYbio] Hoefer DNA Fluorometer TKO-100 tear down and schematic

I second what Cathal said, Great work and thanks for sharing!

Now for a question. Are you sure it would be considered a lock-in
amplifier, and not just a common-mode offset adjust/subtract?

On Sun, Sep 27, 2015 at 1:06 AM, Graham Wideman
<graham.wideman@gmail.com> wrote:
> Some documentation on the internals of the Hoefer TKO-100 DNA Fluorometer,
> including a schematic diagram of the circuit board.
>
> Still looking for an operator's manual!
>
> http://grahamwideman.wikispaces.com/Hoefer+Fluorometer+TKO-100
>
> This is informative beyond this specific unit, as it shows an example of a
> "lock-in" amplifier, a design used for detecting weak signals in the
> presence of noise.
>
> - Graham
>
> --
> -- You received this message because you are subscribed to the Google Groups
> DIYbio group. To post to this group, send email to diybio@googlegroups.com.
> To unsubscribe from this group, send email to
> diybio+unsubscribe@googlegroups.com. For more options, visit this group at
> https://groups.google.com/d/forum/diybio?hl=en
> Learn more at www.diybio.org
> ---
> You received this message because you are subscribed to the Google Groups
> "DIYbio" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to diybio+unsubscribe@googlegroups.com.
> To post to this group, send email to diybio@googlegroups.com.
> Visit this group at http://groups.google.com/group/diybio.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/diybio/1b10d88a-4847-4940-a8e8-32062593ecf3%40googlegroups.com.
> For more options, visit https://groups.google.com/d/optout.



--
-Nathan

--
-- You received this message because you are subscribed to the Google Groups DIYbio group. To post to this group, send email to diybio@googlegroups.com. To unsubscribe from this group, send email to diybio+unsubscribe@googlegroups.com. For more options, visit this group at https://groups.google.com/d/forum/diybio?hl=en
Learn more at www.diybio.org
---
You received this message because you are subscribed to the Google Groups "DIYbio" group.
To unsubscribe from this group and stop receiving emails from it, send an email to diybio+unsubscribe@googlegroups.com.
To post to this group, send email to diybio@googlegroups.com.
Visit this group at http://groups.google.com/group/diybio.
To view this discussion on the web visit https://groups.google.com/d/msgid/diybio/CA%2B82U9K%3D%3DbT%2BBCi3e4CuBfskn4y6M6sRTNW4ERnEKfnrUe-SHQ%40mail.gmail.com.
For more options, visit https://groups.google.com/d/optout.