I haven't read it, but please consider this item understanding that it has been stored at home. Magazine, Monthly Magazine, Book Transistor Technology January 2026 Issue Price: 1,100 yen Contents Features Small circuits, big effects! Mathematical analysis of small circuit arrays with exceptional performance 1. Mathematical performance improvement is the trend! Recommendation of arranging small circuits 2. Performance expands depending on usage! Array component pictorial book Part 1: Arranging small circuits! Construction of circuits with exceptional performance Get the current spectrum with 1kHz sampling! Companion for minute analog signal circuits Chapter 1: See through the tough magnetic noise! Construction of a high-sensitivity sensor array Raspberry Pi Pico 2W x temperature sensor expands measurement and control possibilities! Chapter 2: 16x16 array! Construction of a 3D temperature distribution sensor Distribute heat & reduce output impedance with parallel drive! Chapter 3: 3 dry cell batteries! 7-parallel low-voltage headphone amplifier output stage Parallel technology is essential for high power! Current control is better with bipolar transistors than MOSFETs! Chapter 4: 6-parallel transistors! 100W class constant current load circuit Common sense of modern circuits... Introduction to parallel distributed processing computers Chapter 5: 8-parallel Raspberry Pi Pico! Palm-sized video processing supercomputer Controlling an ultrasonic transducer array makes strange sounds from the air Chapter 6: Highly directional speaker! "Alarm clock that only I can hear" Part 2: Circuit technology & mathematics for arranging components Points for performance improvement by capacitor parallelization! Chapter 1: 10 x 10μF and 1 x 100μF... Experiment on the effectiveness as a bypass capacitor The individuality of discrete components is suitable for single-tone synthesizers! Chapter 2: Transistor ladder type electronic musical instrument voltage controlled filter Not written in the datasheet... Utilizing variations in high-precision circuits such as reference voltage Chapter 3: Circuit performance improvement technique using collective resistance! From the 19th century to the present... Precision measurement technology of resistor arrays Appendix: High-precision, high-resolution voltage divider by arranging the same resistance values Voltage increases as you connect! The standard Cockcroft-Walton circuit in the high-voltage world Chapter 4: Boost with 20-series diode circuits! Construction of a 10,000V output circuit Part 3: High-performance array antenna & basic mathematics Ultra-high performance! Research on phased array antennas for space Chapter 1: Create a super-large antenna in space by arranging many ultra-small satellites Introduction to antenna-oriented electromagnetic field simulator MMANA-GAL etc.