Silicon ChipPartShop - April 2025 SILICON CHIP
  1. Outer Front Cover
  2. Contents
  3. Publisher's Letter: Ferrite beads are not inductors
  4. Feature: 3D-MID and IMSE by Dr David Maddison
  5. Project: Discrete 555 timer by Tim Blythman
  6. Project: The Pico 2 Computer by Geoff Graham & Peter Mather
  7. Feature: The Power Grid’s Future, Part 2 by Brandon Speedie
  8. Project: Weather monitor by Tim Blythman
  9. Feature: Antenna Analysis, Part 3 by Roderick Wall, VK3YC
  10. Subscriptions
  11. Project: Rotating Light for Models by Nicholas Vinen
  12. PartShop
  13. Feature: Precision Electronics, Part 6 by Andrew Levido
  14. PartShop
  15. Project: 433MHz Transmitter Module by Tim Blythman
  16. Project: Power LCR Meter, Part 2 by Phil Prosser
  17. Serviceman's Log: The camera eye by Dave Thompson
  18. Vintage Radio: Astor APK superhet by Jim Greig
  19. Market Centre
  20. Advertising Index
  21. Notes & Errata: Universal Loudspeaker Protector, November 2015
  22. Outer Back Cover

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

You can view 45 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.

Items relevant to "Discrete 555 timer":
  • LTSpice files for JMP024 (Discrete 555 timer) (Software, Free)
Articles in this series:
  • Symbol USB Keyboard (May 2024)
  • Thermal Fan Controller (May 2024)
  • Wired Infrared Remote Extender (May 2024)
  • Self Toggling Relay (June 2024)
  • Arduino Clap Light (June 2024)
  • Digital Compass (July 2024)
  • Lava Lamp Display (July 2024)
  • JMP007 - Ultrasonic Garage Door Notifier (August 2024)
  • JMP009 - Stroboscope and Tachometer (August 2024)
  • No-IC Colour Shifter (September 2024)
  • IR Helper (September 2024)
  • JMP015 - Analog Servo Gauge (October 2024)
  • JMP012 - WiFi Relay Remote Control (October 2024)
  • JMP013 - Digital spirit level (November 2024)
  • JMP014 - Analog pace clock & stopwatch (November 2024)
  • WiFi weather logger (December 2024)
  • Automatic night light (December 2024)
  • BIG LED clock (January 2025)
  • Gesture-controlled USB lamp (January 2025)
  • Wireless flashing LEDs (February 2025)
  • Transistor tester (February 2025)
  • RF Remote Receiver (March 2025)
  • Continuity Tester (March 2025)
  • Discrete 555 timer (April 2025)
  • Weather monitor (April 2025)
Items relevant to "The Pico 2 Computer":
  • Pico 2 Computer PCB [07104251] (AUD $5.00)
  • Pico 2 Computer kit (Component, AUD $120.00)
  • Pico 2 Computer front & rear panels (07104252-3) (PCB, AUD $10.00)
  • PicoMite 2 firmware (Software, Free)
  • Pico 2 Computer PCB pattern (PDF download) [07104251] (Free)
  • Pico 2 Computer PCB assembly files (PCB Pattern, Free)
  • Pico 2 Computer panel artwork and cutting diagrams (Free)
Articles in this series:
  • The Power Grid’s Future, Part 1 (March 2025)
  • The Power Grid’s Future, Part 2 (April 2025)
Items relevant to "Weather monitor":
  • Software for JMP025 (Weather Monitor) (Free)
Articles in this series:
  • Symbol USB Keyboard (May 2024)
  • Thermal Fan Controller (May 2024)
  • Wired Infrared Remote Extender (May 2024)
  • Self Toggling Relay (June 2024)
  • Arduino Clap Light (June 2024)
  • Digital Compass (July 2024)
  • Lava Lamp Display (July 2024)
  • JMP007 - Ultrasonic Garage Door Notifier (August 2024)
  • JMP009 - Stroboscope and Tachometer (August 2024)
  • No-IC Colour Shifter (September 2024)
  • IR Helper (September 2024)
  • JMP015 - Analog Servo Gauge (October 2024)
  • JMP012 - WiFi Relay Remote Control (October 2024)
  • JMP013 - Digital spirit level (November 2024)
  • JMP014 - Analog pace clock & stopwatch (November 2024)
  • WiFi weather logger (December 2024)
  • Automatic night light (December 2024)
  • BIG LED clock (January 2025)
  • Gesture-controlled USB lamp (January 2025)
  • Wireless flashing LEDs (February 2025)
  • Transistor tester (February 2025)
  • RF Remote Receiver (March 2025)
  • Continuity Tester (March 2025)
  • Discrete 555 timer (April 2025)
  • Weather monitor (April 2025)
Articles in this series:
  • Antenna Analysis, Part 1 (February 2025)
  • Antenna Analysis, Part 2 (March 2025)
  • Antenna Analysis, Part 3 (April 2025)
Items relevant to "Rotating Light for Models":
  • Rotating Light for Models PCB [09101251] (AUD $2.50)
  • PIC16F15224-I/SL programmed for the Rotating Light for Models [0910125A.HEX] (Programmed Microcontroller, AUD $10.00)
  • Rotating Light kit (SMD LED version) (Component, AUD $20.00)
  • Rotating Light kit (TH LED version) (Component, AUD $20.00)
  • Software for the Rotating Light for Models [0910125A.HEX] (Free)
  • Rotating Light for Models PCB pattern (PDF download) [09101251] (Free)
Articles in this series:
  • Precision Electronics, Part 1 (November 2024)
  • Precision Electronics, Part 2 (December 2024)
  • Precision Electronics, part one (January 2025)
  • Precision Electronics, Part 3 (January 2025)
  • Precision Electronics, part two (February 2025)
  • Precision Electronics, Part 4 (February 2025)
  • Precision Electronics, Part 5 (March 2025)
  • Precision Electronics, part three (March 2025)
  • Precision Electronics, part four (April 2025)
  • Precision Electronics, Part 6 (April 2025)
  • Precision Electronics, Part 7: ADCs (May 2025)
  • Precision Electronics, part five (May 2025)
  • Precision Electronics, part six (June 2025)
Items relevant to "433MHz Transmitter Module":
  • 433MHz Transmitter Module kit (Component, AUD $20.00)
  • 433MHz Transmitter Module PCB pattern (PDF download) [15103251] (Free)
Items relevant to "Power LCR Meter, Part 2":
  • Power LCR Meter PCB [04103251] (AUD $10.00)
  • PIC32MK0128MCA048 programmed for the Power LCR Meter [0410325A.HEX] (Programmed Microcontroller, AUD $20.00)
  • Software & STL files for the Power LCR Tester (Free)
  • Power LCR Meter PCB pattern (PDF download) [04103251] (Free)
  • Power LCR Meter panel artwork and drilling diagrams (Free)
Articles in this series:
  • Power LCR Tester, Part 1 (March 2025)
  • Power LCR Meter, Part 2 (April 2025)

Purchase a printed copy of this issue for $13.00.

SOnline ilicon Chip Shop Kits, parts and much more www.siliconchip.com.au/Shop/ Compact OLED Clock & Timer September 2024 Short-Form Kit SC6979: $45 siliconchip.au/Article/16570 This kit includes everything needed to build the OLED clock, except the UB5 Jiffy box and Li-ion cell. Dual Mini LED Dice August 2024 Micromite-Explore 40 October 2024 Complete Kit SC6991: $35 SMD LED Complete Kit SC6961: $17.50 TH LED Complete Kit SC6849: $17.50 siliconchip.au/Article/16418 siliconchip.au/Article/16677 Includes either 3mm through-hole or 1206sized SMD LEDs. Choice of either white or black PCB. CR2032 coin cell not included. Includes the PCB and all onboard parts. Audio Breakout board and Pico BackPack are sold separately. Compact HiFi Headphone Amplifier Complete Kit SC6885: $70 Capacitor Discharger December 2024 December 2024 & January 2025 siliconchip.au/Series/432 This kit includes everything required to build the Compact HiFi Headphone Amplifier. The case is included, but you will need your own power supply. Programmable Frequency Divider Complete Kit SC6959: $60 Feb25: siliconchip.au/Article/17733 Includes all onboard components, except for a power supply and the optional programming header. Short-Form Kit SC7404: $30 siliconchip.au/Article/17310 Includes the PCB, resistors, semis, mounting hardware and banana sockets. Case, heatsink, thermal switch and wiring are not supplied. → Subscribers receive a 10% discount on all purchases, except for subscriptions (postage is not discounted). → Prices listed do not include postage. Postage rates within Australia start at $12, rates are calculated at the checkout.