Silicon ChipSubscriptions - February 2023 SILICON CHIP
  1. Outer Front Cover
  2. Contents
  3. Publisher's Letter: Ripping customers off through service & repair
  4. Feature: Computer Memory, Part 2 by Dr David Maddison
  5. Feature: Computer Memory Addendum by Nicholas Vinen
  6. Project: Active Mains Soft Starter, Part 1 by John Clarke
  7. Subscriptions
  8. Project: Advanced Test Tweezers, Part 1 by Tim Blythman
  9. Feature: A 30mm Spark-Gap Tesla Coil by Flavio Spedalieri
  10. PartShop
  11. Project: Active Subwoofer, Part 2 by Phil Prosser
  12. Product Showcase
  13. Feature: Heart Rate Sensor Module by Jim Rowe
  14. Project: Noughts & Crosses, Part 2 by Dr Hugo Holden
  15. Serviceman's Log: Nature abhors a vacuum, and so do I by Dave Thompson
  16. Vintage Radio: VE301Wn Dyn Volksemfanger by Ian Batty
  17. Market Centre
  18. Advertising Index
  19. Notes & Errata: Bass Block Subwoofer, January 2021; High-Performance Active Subwoofer, December 2022
  20. Outer Back Cover

This is only a preview of the February 2023 issue of Silicon Chip.

You can view 36 of the 112 pages in the full issue, including the advertisments.

For full access, purchase the issue for $10.00 or subscribe for access to the latest issues.

Articles in this series:
  • Computer Memory, Part 1 (January 2023)
  • Computer Memory, Part 2 (February 2023)
  • Computer Memory Addendum (February 2023)
Articles in this series:
  • Computer Memory, Part 1 (January 2023)
  • Computer Memory, Part 2 (February 2023)
  • Computer Memory Addendum (February 2023)
Items relevant to "Active Mains Soft Starter, Part 1":
  • Active Mains Soft Starter PCB [10110221] (AUD $10.00)
  • PIC12F617-I/P programmed for the Active Mains Soft Starter [1011022A.HEX] (Programmed Microcontroller, AUD $10.00)
  • Hard-to-get parts for the Active Mains Soft Starter (Component, AUD $100.00)
  • Firmware for the Active Mains Soft Starter [1011022A] (Software, Free)
  • Active Mains Soft Starter PCB pattern (PDF download) [10110221] (Free)
  • Active Mains Soft Starter lid panel artwork (PDF download) (Free)
Articles in this series:
  • Active Mains Soft Starter, Part 1 (February 2023)
  • Active Mains Soft Starter, Part 2 (March 2023)
Items relevant to "Advanced Test Tweezers, Part 1":
  • Advanced/ESR Test Tweezers back panel PCB (blue) [04105242] (AUD $2.50)
  • Advanced SMD Test Tweezers PCB set [04106221+04106212 {blue}] (AUD $10.00)
  • PIC24FJ256GA702-I/SS programmed for the Advanced SMD Test Tweezers (0410622A.HEX) (Programmed Microcontroller, AUD $15.00)
  • 0.96in cyan OLED with SSD1306 controller (Component, AUD $10.00)
  • Advanced SMD Test Tweezers kit (Component, AUD $45.00)
  • Firmware for the Advanced SMD Test Tweezers [0410622A.HEX] (Software, Free)
  • Advanced SMD Test Tweezers PCB patterns (PDF download) [04106221+04106212] (Free)
  • Advanced SMD Test Tweezers sticker artwork (PDF download) (Panel Artwork, Free)
Articles in this series:
  • Advanced Test Tweezers, Part 1 (February 2023)
  • Advanced Test Tweezers, Part 2 (March 2023)
Items relevant to "Active Subwoofer, Part 2":
  • Active Monitor Speakers power supply PCB [01112221] (AUD $10.00)
  • Active Monitor Speakers cutting and assembly diagrams (Panel Artwork, Free)
  • Ultra-LD Mk.4 Amplifier PCB [01107151 RevC] (AUD $15.00)
  • Ultra-LD Mk3 200W Amplifier Module PCB [01107111] (AUD $15.00)
  • High-Performance Subwoofer amplifier bracket & heatsink diagrams (PDF download) (Panel Artwork, Free)
Articles in this series:
  • Active Monitor Speakers, Part 1 (November 2022)
  • Active Monitor Speakers, Part 2 (December 2022)
  • Active Subwoofer, Part 1 (January 2023)
  • Active Subwoofer, Part 2 (February 2023)
Items relevant to "Heart Rate Sensor Module":
  • Sample software for the Heart Rate Sensor Module (Free)
Articles in this series:
  • El Cheapo Modules From Asia - Part 1 (October 2016)
  • El Cheapo Modules From Asia - Part 2 (December 2016)
  • El Cheapo Modules From Asia - Part 3 (January 2017)
  • El Cheapo Modules from Asia - Part 4 (February 2017)
  • El Cheapo Modules, Part 5: LCD module with I²C (March 2017)
  • El Cheapo Modules, Part 6: Direct Digital Synthesiser (April 2017)
  • El Cheapo Modules, Part 7: LED Matrix displays (June 2017)
  • El Cheapo Modules: Li-ion & LiPo Chargers (August 2017)
  • El Cheapo modules Part 9: AD9850 DDS module (September 2017)
  • El Cheapo Modules Part 10: GPS receivers (October 2017)
  • El Cheapo Modules 11: Pressure/Temperature Sensors (December 2017)
  • El Cheapo Modules 12: 2.4GHz Wireless Data Modules (January 2018)
  • El Cheapo Modules 13: sensing motion and moisture (February 2018)
  • El Cheapo Modules 14: Logarithmic RF Detector (March 2018)
  • El Cheapo Modules 16: 35-4400MHz frequency generator (May 2018)
  • El Cheapo Modules 17: 4GHz digital attenuator (June 2018)
  • El Cheapo: 500MHz frequency counter and preamp (July 2018)
  • El Cheapo modules Part 19 – Arduino NFC Shield (September 2018)
  • El cheapo modules, part 20: two tiny compass modules (November 2018)
  • El cheapo modules, part 21: stamp-sized audio player (December 2018)
  • El Cheapo Modules 22: Stepper Motor Drivers (February 2019)
  • El Cheapo Modules 23: Galvanic Skin Response (March 2019)
  • El Cheapo Modules: Class D amplifier modules (May 2019)
  • El Cheapo Modules: Long Range (LoRa) Transceivers (June 2019)
  • El Cheapo Modules: AD584 Precision Voltage References (July 2019)
  • Three I-O Expanders to give you more control! (November 2019)
  • El Cheapo modules: “Intelligent” 8x8 RGB LED Matrix (January 2020)
  • El Cheapo modules: 8-channel USB Logic Analyser (February 2020)
  • New w-i-d-e-b-a-n-d RTL-SDR modules (May 2020)
  • New w-i-d-e-b-a-n-d RTL-SDR modules, Part 2 (June 2020)
  • El Cheapo Modules: Mini Digital Volt/Amp Panel Meters (December 2020)
  • El Cheapo Modules: Mini Digital AC Panel Meters (January 2021)
  • El Cheapo Modules: LCR-T4 Digital Multi-Tester (February 2021)
  • El Cheapo Modules: USB-PD chargers (July 2021)
  • El Cheapo Modules: USB-PD Triggers (August 2021)
  • El Cheapo Modules: 3.8GHz Digital Attenuator (October 2021)
  • El Cheapo Modules: 6GHz Digital Attenuator (November 2021)
  • El Cheapo Modules: 35MHz-4.4GHz Signal Generator (December 2021)
  • El Cheapo Modules: LTDZ Spectrum Analyser (January 2022)
  • Low-noise HF-UHF Amplifiers (February 2022)
  • A Gesture Recognition Module (March 2022)
  • Air Quality Sensors (May 2022)
  • MOS Air Quality Sensors (June 2022)
  • PAS CO2 Air Quality Sensor (July 2022)
  • Particulate Matter (PM) Sensors (November 2022)
  • Heart Rate Sensor Module (February 2023)
  • UVM-30A UV Light Sensor (May 2023)
  • VL6180X Rangefinding Module (July 2023)
  • pH Meter Module (September 2023)
  • 1.3in Monochrome OLED Display (October 2023)
  • 16-bit precision 4-input ADC (November 2023)
  • 1-24V USB Power Supply (October 2024)
  • 0.91-inch OLED Screen (November 2024)
  • TCS230 Colour Sensor (January 2025)
Items relevant to "Noughts & Crosses, Part 2":
  • Static Noughts & Crosses Computer game board PCB [08111221] (AUD $12.50)
  • Static Noughts & Crosses Computer compute board PCB [08111222] (AUD $12.50)
  • W27C020-70 EEPROM programmed for the Static Noughts & Crosses Computer [0811122A.bin] (Programmed Microcontroller, AUD $10.00)
  • EEPROM data for the Static Noughts & Crosses Computer (0811122A.bin) (Software, Free)
  • Static Noughts & Crosses Computer case details (PDF download) (Panel Artwork, Free)
Articles in this series:
  • Noughts & Crosses Machine, Pt1 (January 2023)
  • Noughts & Crosses, Part 2 (February 2023)

Purchase a printed copy of this issue for $11.50.
Subscribe to JANUARY 2023 ISSN 1030-2662 01 The VERY BEST DIY Projects! 9 771030 266001 $1150* NZ $1290 INC GST INC GST 30 Q Meter for Inductors 40 How to buIld your own MInI-ItX Pc 50 rasPberry PI PIco w backPack 58 HIgH-PerforMance actIve subwoo fer 80 nougHts & crosses PlayIng MacHIne COMPUTER MEMORY Australia’s top electronics magazine THE HISTORY OF EARLY DATA STORAGE Silicon Chip is one of the best DIY electronics magazines in the world. Each month is filled with a variety of projects that you can build yourself, along with features on a wide range of topics from in-depth electronics articles to general tech overviews. Published in Silicon Chip If you have an active subscription you receive 10% OFF orders from our Online Shop (siliconchip.com.au/Shop/)* Rest of World New Zealand Australia * does not include the cost of postage Length Print Combined Online 6 months $65 $75 $50 1 year $120 $140 $95 2 years $230 $265 $185 6 months $80 $90 1 year $145 $165 2 years $275 $310 6 months $100 $110 1 year $195 $215 2 years $380 $415 All prices are in Australian dollars (AUD). Combined subscriptions include both the printed magazine and online access. Try our Online Subscription – now with PDF downloads! The History of Computer Memory; January 2023 Building your own MiniITX PC; January 2023 Q Meter; January 2023 Dual-Channel Breadboard PSU; December 2022 An online issue is perfect for those who don’t want too much clutter around the house and is the same price worldwide. Issues can be viewed online, or downloaded as a PDF. To start your subscription go to siliconchip.com.au/Shop/Subscribe