In a previous thread, Michael (dela217) had this to say about Pan Alembics:
Pan was a company that was distributed by L.D. Heater. The same folks that distributed Alembic back in 1973 and 74 before Rothchild stepped in. A Pan/Alembic is a Pan instrument that was modified by Alembic on a production line basis. At least that is what the Pan brochure says that I am taking this from. The Pan/Alembic instruments featured Alembic ceramic magnet hot-rod modification and some Alembic shielding. There was also some Alembic low end boost and low end cut switches. So....a Pan was a Pan, and a Pan/Alembic was just a knockoff with some uprated electronics.