In addition to the request to add Vacuum Tube models (PLEASE) for guitar amplifier design. I just realized that this is a waste of money for me because i NEED VACUUM Tubes, as already requested, by another user. I’d like to add Tube Rectifiers m: 5AR4/GZ34, 5Y3, 5U4GB, 5U4G, 6A4/EZ81..But for right now..I will settle for modeling of 12AX7/ECC83 , EL34, 6L6, EL84..PLEASE...otherwise I have No Use for this..Please...Thank You