unknown subcircuit in LTspice


Joined Feb 24, 2006
You have a symbol on your schematic labeled VR1 which calls out a subcircuit file for a potentiometer. Unfortunately your system does not have a potentiometer subcircuit where it is expected to be. Since I can't be there to look over your shoulder I can't easily tell you where to look for one.

One problem that does come up is custom symbols with hard coded paths to the subcircuit. When you move them to another machine the hard coded paths become invalid. If you post your schematic file (.asc) to your message I will try to debug it for you, and give you back something that is machine independent.
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Audioguru again

Joined Oct 21, 2019
Also, the circuit is useless without the part number of the Mosfet to see how only one with "typical" specs works.
The important pulse voltage is not shown.