I am an electronic radiophysicist by profession. I have been developing bipolar, Schottky TTL, and CMOS microchips for 6 years. Then I went to work at a watch factory and developed clock microchips for 14 years. During that time I developed several improved quartz oscillators and a new T-trigger with fewer transistors. As a result, my clock microchips consumed 1.5 times less current than the microchips from other clock companies.
Then I worked on the backlighting of the optical scales. I developed several holographic scopes. I developed laser drivers.
Now I am retired, but I continue to work at the firm. I now work in medical technology, including lasers.
I am an expert in Spice programs. I have tried over 30 of them. I have accumulated a huge number of spice models.
I made a big collection of models for LTspice and gave free access to it. With my collection of models LTspice is not inferior to commercial programs, and even superior to them. I run LTspice pages on kazus.ru.