The results of the field trials of the Lincoln Training System (LTS-3) program are summarized in this report. The LTS-3 system was designed to teach basic electronics to Air Force personnel at Kessler Air Force Base, Mississippi. The results indicated that the instructional delays due to system failure were minimal, and those failures were isolated and corrected. The initial results of the system were excellent. Training time was reduced thirty-four%. The scores on the Block Test were slightly better for the LTS than for the control groups, and a student attitude survey indicated a strong preference for LTS over conventional training. The major emphasis in this program has been on reader system design, specifications for a self-processor, and studies of the audio channel as it affects the storing of digital control information on lesson fiche. (Author/MC)