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Tonni Christiansen has a long and diverse career in the field of electronics and technical engineering. With experience ranging from product engineering to business ownership, Tonni has worked in various capacities such as service engineer, electronics technician, computer technician, and test technician. Throughout their career, Tonni has specialized in servicing and maintaining a range of electronic equipment including printers, modems, multiplexers, and display terminals. They have also worked in production engineering for military radios and in creating test setups for electronic weighing systems.