Dear all, the circuit above is quoted from here, and I wish to try to produce similar graph in LT Spice but I am unsure of it. The LT Spice schematic is correct since I tested it with specific 10V input AC, and it produces linear voltage on its output. However, I want to do an AC sweep on this thing but I only get this weird bode plot? May I ask how to reproduce the triangle wave which indicates linear voltage vs frequency in LT Spice ? Below attached my LT Spice file
Thank you for reading
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