[sdiy] Fw: 4-Quadrant VCA?

[Quincas Moreira]

Thanks Bernie! So glad to have you here present with us :)

On Thu, Sep 14, 2017 at 7:12 PM, Bernard Arthur Hutchins Jr <
bah13 at cornell.edu> wrote:

> The EN#107 write-up on the OTA  4QM as kindly scanned and  submitted by
> Guy McCusker is here:
>
> http://electronotes.netfirms.com/ota-4qm.pdf
>
> and is also listed in the requested item area of the EN website.  Just
> below that requested item is the link to Ian Fritz's filter bank in the
> same EN#107, along with filter bank items of my own in EN#115 and EN#116 in
> the serial listings on the site.   These filter bank items were listed here
> on SDIY a few months ago, but I am just now getting around to listing
> them officially.
>
> By coincidence, we were asked about an Electronotes supplement, S-008, and
> Phillip Gallo was kind enough to scan this and provide a link that is
> listed in the supplements section of our site.
>
> Busy day.
>
> Bernie
>
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>
>


-- 
Quincas Moreira
Test Pilot at VBrazil Modular
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