Good to hear you have it working.
Orcad used to have free 'student' version of PSpice.
The student and LT type of spice programs are good for relatively simple stuff.
Once you get into areas of subltle design failures, the full programs are quite something nowadays. Everything from transformer core losses and flux levels to eye charts of digital transmission lines. (but full versions pricey) Have used PSpice since about 1988, you originally had to hand write a netlist, no schematic tools. Great for transient analysis.
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