PTO means Permeability Tuned Oscillator in Electronics
Similar to PTO
ACT - Akebono Ceramic TechnologyACT - Air Cooled Triode
ACTM - Accelerated Corrosion Testing Method
ADAC - Advanced Digital Acoustic Coding
ADACS - Advanced Digital and Analog Collection System
ADAM - Active Design and Analysis Modeling
ADAM - Advanced Digital Audio Matrix
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