Re: gEDA-user: Signal Source Setup for Electric Guitar?

[Anthony Shanks <yamazakir2@xxxxxxxxx>]

Where is the schematic?

On Tue, May 12, 2009 at 1:19 PM, Michael B Allen <ioplex@xxxxxxxxx> wrote:
> Hi,
>
> What would be a good signal source setup for an electric guitar? I
> thought I read somewhere an electric guitar could put out 1V so I used
> the following:
>
>  * Source (V2 input 0 dc 0 ac 1)
>  V2 input 0 DC 0.0 SIN( 0.00 1.00 440.00 0.00 0.00 )
>
>  [Disclaimer: This was entered using gspiceui.]
>
> But when I run the simulation with a simple single transistor preamp
> circuit [1] the base values go negative and the output is badly
> distorted. I have to drop the amplitude to 400mV to get good base
> voltages and I have to drop it to 20mV to get a really good output
> SIN. So either I'm wrong about the output of a guitar pickup or I
> screwed something up.
>
> Can anyone give me some tips on modelling audio like this?
>
> I'm a total newbie BTW. My degree is in Chemistry and I'm a programmer
> by profession. So I'm just doing this for fun.
>
> Mike
>
> [1] http://www.tonepad.com/getFile.asp?id=68
>
>
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