gideonz_at_dds.nl
Date: 2003-02-07 13:38:43
Citeren Groepaz <groepaz@gmx.net>:
> On Thursday 06 February 2003 07:28, Baltissen, R (Ruud) wrote:
> > Hallo Groepaz,
> >
> > > however, the idea with the capacitors is even better :)
> >
> > Why, if I may ask? The capacitors don't improve anything and just add a
> > frequency-dependant resistor to the circuit.
> well... the capacitor serves as a decoupling device....
True. It removes the DC component.
> as for the c64, i would personally always use them, since they keep away any
> static voltage from the valueable device :)
No they don't. Static discharges are almost 'delta pulses' and hence have a
very high frequency content. For very high frequencies, a capacitor is actually
a short, not an open!
> btw "frequency dependant" .... no, you would choose a capacitor whose
> capacity
> is small enough to not interfere in this respect.
Uhmm.. you mean large enough.. The larger the capacitor, the lower the cut-off
frequency. You are making a high-pass filter with the C and the impedance of
the amplifier.
Gideon
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