[sdiy] Reality versus simulation?

[Tom Wiltshire]

As per schematic, +/-10% for the caps, +/-1% for the resistors.

Values wobbling about would shift the cutoff points a bit, but shouldn't give the significant downhill slope I'm actually seeing. Should it?

For example, RC variations give me a lowpass cutoff of supposedly 28.4KHz, but actually 25.6 kHz – 31.9 kHz.


On 27 Nov 2015, at 11:52, Neil Johnson <neil.johnson71 at gmail.com> wrote:

> Tom,
> 
> > So what's going on with the real-life filters? Can I improve their performance?
> 
> What are the actual values of the capacitors and resistors in your circuit?
> 
> Neil