• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Assigning OPT model to existing assembly in LTSpice

I followed the instructions, yet, getting this error code.
IMG_2644.jpeg


I tried a couple other things, copying and pasting the script title into one and then both, still getting an error.
IMG_2643.jpeg

So does anyone have the correct instructions on connecting the script written in the model (some reason the script button is greyed and non-operational in the .asy file) to the generic OPT model?

The OPT that comes with LTSpice is a vintage model that is NLA, plus be nice to evaluate different OPTs.

Thanks in advance. 😀