[sdiy] Magic little box

[Scott Gravenhorst]

Sounds like what you want to do is possible, although
we don't have truly specific details here.  Low level
audio signals should work thru an IC like this.  BTW,
the CD4066 is an improved version of the 4016.  It has
a lower ON resistance of 80 ohms with a delta of 5 ohms
between switches in the same package.  It might work
for control voltages too.  Crosstalk at -50dB, looks OK,
but not excellent.  40 MHz of frequency response ought 
to be sufficient for audio.

"Aku Raski" <aku.raski at welho.com> wrote:
>
>
>
>Good people of SDYI,
>
>Hello all, my name is Aku and I've been subscribing this list for quite some
>time now. The techinical superiority in the list is usually too overwhelming
>for me but the good spirit that the list is enjoying makes it still pleasure
>to read.
>
>I was hoping If somebody of you would have ideas or pointers of how I could
>get the following idea to work:
>
>I'd be interested in building multiple very simple cmos spst switches that
>I'd be able to controll with my midi to cv-gate interface by sending gate
>signals to the IC. The idea was to have a some kind of a cmos switch circuit
>(4016?) that I would place in a small enclosure and mount jacks outside the
>box. Preferably so that it would be powered with a single 9V battery.
>
>What I'm hoping this simplified "VCA" would do is to have a signalpath from
>A to B that would normally be unconnected, but as soon as the trigger input
>in the IC would receive a positive gate  signal(+5) from the cv-interface it
>would connect the A and B.
>
>The material going thru the pathway is totally uncritical and low in voltage
>and not expected to fill any hi-fi standards.
>
>
>Best to you all,
>
>Aku
>

=========================================================  
- Government: The other religion.
- The media's credibility should always be questioned.
- Lambs who lie down with lions are lunch.

-- Scott Gravenhorst | LegoManiac / Lego Trains / RIS 1.5
-- Linux Rex         | RedWebMail by RedStarWare
-- FatMan: home1.GTE.NET/res0658s/TekLab_FatMan_WebSite/index.html