Electronic

• 9B10.00 - Camera Self-Timers
• 9B10.10 - Spark Timer
• 9B10.70 - GPS
• 9B20.30 - Photomultiplier tubes and NaI Crystals
• 9B40.20 - Radios and Radio Spectrum
• 9B40.25 - Ultrasound
• 9B40.27 - Carbon Ion Radiotherapy - Proton Radiotherapy
• 9B40.30 - MRI - Magnetic Resonance Imaging
• 9B40.50 - CT - Computerized Tomography
• 9B40.65 - Ion Microscope - Field Ion Microscope
• 9B40.70 - STM - Scanning Tunneling Microscope
• 9B40.75 - Atomic Force Microscope Model
• 9B40.80 - PET - Positron Emission Tomography
• 9B40.85 - Electron Microscope
• 9B40.87 - Bright Field Microscopy
• 9B40.90 - Optical Tweezers
• 9B60.69 - Blackbody Radiation & Practical BB Sources
• 9B60.75 - Fluorescent Lighting Fixtures
• 9B65.91 - Electromagnetic Radiation - Microwave