Hi Everyone,
I am away from my soldering iron for a while, but I have my computer with me, so I have been modeling different power supply options in PSUD2 for a couple projects waiting back home.
There is a recurring theme to these models: strange "V" shaped lines or sometimes slopes for the voltage graphs. These show up if I chose a delay for the sample period. The images below were sampled after a delay of 120 seconds.
Is this a sign of oscillation in the power supply?
see the two attached images for a phono preamp. One is the power supply as suggested on the schematic, and the second is a model of a PS based on parts in my scrap box.

I am away from my soldering iron for a while, but I have my computer with me, so I have been modeling different power supply options in PSUD2 for a couple projects waiting back home.
There is a recurring theme to these models: strange "V" shaped lines or sometimes slopes for the voltage graphs. These show up if I chose a delay for the sample period. The images below were sampled after a delay of 120 seconds.
Is this a sign of oscillation in the power supply?
see the two attached images for a phono preamp. One is the power supply as suggested on the schematic, and the second is a model of a PS based on parts in my scrap box.

