two questions

[harrybissell at prodigy.net]

C = Farads
R = Ohms
Frequency = Hertz

(and current will always be in Amps) This is standard notation and you can always use these values unless otherwise noted....

H^)

 ---- On Feb 29 Rob Rickner <rrickner at zoo.uvm.edu> wrote: 
> Um, two completely unrelated questions her.  First, I want to use to
> dual op-amps in the place of one LM324 for one of tomg's CV-Mixer
> circuits, It's for two, I need one.  Second, in Marston's Audio IC users
> handbook there is an equation-
> FrequencyC=1/2piRC could somebody please explain what the units are.  is
> resistance in ohms or kilo-ohms, is the capacitance in farads,
> microfarads, or what?  Is the frequency just in Hz?  It's on page 30.
> Also, does anyone know anything about the AM circuit on page 53?  Are
> both inputs in the audio range?  And, in response to the request for a
> VCA that runs on +/-9volts, the same book has several.
> Rob Rickner cut/generic
> PS, thank you to everyone who helped me out on my last couple of
> questions.
>