Silicon ChipOuter Front Cover - December 2025 SILICON CHIP
  1. Outer Front Cover
  2. Contents
  3. Publisher's Letter: Dutch government fumbles with Nexperia
  4. Product Showcase
  5. PartShop
  6. Feature: Humanoid Robots, Part 2 by Dr David Maddison, VK3DSM
  7. Feature: Power Electronics, Part 2 by Andrew Levido
  8. Project: RGB LED Star Ornament by Nicholas Vinen
  9. Feature: How to Design PCBs, Part 1 by Tim Blythman
  10. Project: Earth Radio, Part 1 by John Clarke
  11. Project: DCC Decoder by Tim Blythman
  12. Project: Digital Preamplifier, Part 3 by Phil Prosser
  13. Serviceman's Log: The Bad Old Days by Dave Thompson
  14. Vintage Radio: BC-211 Frequency Meter by Ian Batty
  15. Market Centre
  16. Advertising Index
  17. Notes & Errata: Digital Preamplifier, part one, October 2025; Serviceman’s Log, October 2025
  18. Outer Back Cover

This is only a preview of the December 2025 issue of Silicon Chip.

You can view 35 of the 104 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:
  • Humanoid Robots, Part 1 (November 2025)
  • Humanoid Robots, Part 2 (December 2025)
Articles in this series:
  • Power Electronics, Part 1 (November 2025)
  • Power Electronics, Part 2 (December 2025)
Items relevant to "RGB LED Star Ornament":
  • RGB LED Star PCB [16112251] (AUD $12.50)
  • PIC16F18126-I/SL programmed for the RGB LED Star [1611225A.HEX] (Programmed Microcontroller, AUD $10.00)
  • AP5002SG buck regulator IC (SOIC-8) (Component, AUD $5.00)
  • RGB LED Star kit (Component, AUD $80.00)
  • RGB LED Star firmware [1611225A.HEX] (Software, Free)
  • RGB LED Star PCB pattern (PDF download) [16112251] (Free)
Items relevant to "Earth Radio, Part 1":
  • Earth Radio PCB [06110251] (AUD $5.00)
  • Earth Radio short-form kit (Component, AUD $55.00)
  • Earth Radio PCB pattern (PDF download0 [06110251] (Free)
  • Earth Radio panel artwork, drilling and antenna construction diagrams (Free)
Items relevant to "DCC Decoder":
  • DCC Decoder PCB [09111241] (AUD $2.50)
  • PIC16F18126-I/SL programmed for the DCC Decoder [0911124A.HEX] (Programmed Microcontroller, AUD $10.00)
  • DCC Decoder kit (Component, AUD $25.00)
  • DCC Decoder Star firmware [0911124A.HEX] (Software, Free)
  • DCC Decoder PCB pattern (PDF download) [09111241] (Free)
Items relevant to "Digital Preamplifier, Part 3":
  • Digital Preamplifier main PCB [01107251] (AUD $30.00)
  • Digital Preamplifier front panel control PCB [01107252] (AUD $2.50)
  • Digital Preamplifier power supply PCB [01107253] (AUD $7.50)
  • PIC32MX270F256D-50I/PT‎ programmed for the Digital Preamplifier/Crossover [0110725A.HEX] (Programmed Microcontroller, AUD $20.00)
  • Firmware for the Digital Preamplifier/Crossover (Software, Free)
  • Digital Preamplifier/Crossover PCB patterns (PDF download) [01107251-3] (Free)
  • 3D printing files for the Digital Preamplifier/Crossover (Panel Artwork, Free)
  • Digital Preamplifier/Crossover case drilling diagrams (Panel Artwork, Free)
Articles in this series:
  • Digital Preamp & Crossover (October 2025)
  • Digital Preamp & Crossover, Pt2 (November 2025)
  • Digital Preamplifier, Part 3 (December 2025)

Purchase a printed copy of this issue for $14.00.
DECEMBER 2025 ISSN 1030-2662 12 9 771030 266001 $ 00* NZ $14 90 The VERY BEST DIY Projects! 14 INC GST INC GST RGB LED Star Pre-assembled and ready to decorate in time for Christmas How to design your own PCBs All the steps needed to make and order your own printed circuit boards DCC Decoder for model locomotives HUMANOID ROBOTS