This tenth of 10 blocks of student and teacher materials for a secondary/postsecondary level course in electronic principles comprises one of a number of military-developed curriculum packages selected for adaptation to vocational instruction and curriculum development in a civilian setting. Prerequisites are the previous blocks. This block on microwave devices and soldering contains five modules covering 27 hours of instruction on waveguides and cavity resonators (6 hours), microwave amplifiers and oscillators (8), soldering tools and materials (3), soldering and desoldering procedures (7), and multiconductor and coaxial cable fabrication (3). Printed instructor materials include a plan of instruction detailing the units of instruction, duration of the lessons, criterion objectives, and support materials needed. Student materials include a student text and five guidance packages containing objectives, assignments, review exercises, and answers for each module. A digest of the modules in the block is provided for students who need only to review the material. Designed for self- or group-paced instruction, the material can be adapted for individualized instruction. Additional print and audiovisual materials are recommended but not provided. (YLB)