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DIY Stompboxes => Building your own stompbox => Topic started by: Yoshi on December 25, 2023, 04:46:50 PM

Title: LTspice problems
Post by: Yoshi on December 25, 2023, 04:46:50 PM
Hi... Im tryng to do test´s int LTspice. Im coping a tubescreemer... but when i Run the program, the signal dosen´t work....

Do anyone has an idea? thanks a lot,
(https://i.postimg.cc/HVpxg1fY/tube.png) (https://postimg.cc/HVpxg1fY)
happy Christmas
Title: Re: LTspice problems
Post by: Rob Strand on December 25, 2023, 05:56:40 PM
Quote from: Yoshi on December 25, 2023, 04:46:50 PMHi... Im tryng to do test´s int LTspice. Im coping a tubescreemer... but when i Run the program, the signal dosen´t work....
Just Human error, C6 connected to wrong point.
At some point try a larger R7.
Title: Re: LTspice problems
Post by: GibsonGM on December 26, 2023, 07:58:02 AM
Quote from: Rob Strand on December 25, 2023, 05:56:40 PMAt some point try a larger R7.


Good eye, Rob.

And then try an output cap/pulldown resistor to get rid of that pesky DC offset.
Title: Re: LTspice problems
Post by: mac on December 27, 2023, 02:40:14 PM
Use a guitar mic model as your input signal. Maybe not needed here because of the input buffer but sometimes the guitar circuitry interacts with the effect input impedance, e.g., Rangemaster.

mac
Title: Re: LTspice problems
Post by: Yoshi on December 27, 2023, 04:06:11 PM
Thanks!!!! you are the best
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