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 outstanding performance 1. Mathematical performance improvement is the trend! The recommendation of arranging small circuits 2. Performance expands depending on usage! Array component pictorial book Part 1: Arranging small circuits! Building circuits with outstanding performance Get the current spectrum with 1kHz sampling! Companion for minute analog signal circuits Chapter 1: Seeing through the tough magnetic noise! Building a high-sensitivity sensor array Raspberry Pi Pico 2W x temperature sensor expands the possibilities of measurement and control! Chapter 2: 16x16 array! Building a 3D temperature distribution sensor Distribute heat and reduce output impedance with parallel drive! Chapter 3: 3 dry cell batteries! 7-parallel low-voltage headphone amplifier for the 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 improving performance by paralleling capacitors! 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 voltage controlled filter for electronic musical instruments Not written in the datasheet... Utilizing variations in high-precision circuits such as reference voltage Chapter 3: Circuit performance improvement techniques using collective resistors! From the 19th century to the present... Precision measurement technology of resistor arrays Appendix: High-precision, high-resolution voltage dividers by arranging the same resistance values Voltage increases as you connect! The standard Cockcroft-Walton circuit in the high-voltage world Chapter 4: Boosting with 20 diode circuits! Building a 10,000V output circuit Part 3: High-performance array antennas & basic mathematics Ultra-high performance! Research on phased array antennas for space Chapter 1: Creating a super-large antenna in space by arranging many ultra-small satellites Introduction to antenna-oriented electromagnetic field simulator MMANA-GAL etc.