Silicon ChipOuter Front Cover - April 2022 SILICON CHIP
  1. Outer Front Cover
  2. Contents
  3. Publisher's Letter: Writing clealy and concisely
  4. Feature: Geiger Counters and Radiation by Dr David Maddison
  5. Project: 500W Power Amplifier, Part 1 by John Clarke
  6. Subscriptions
  7. Feature: The History of Transistors, Pt2 by Ian Batty
  8. Project: Railway Semaphore Signal by Les Kerr
  9. Feature: ElectroneX by AEE
  10. Project: Update: SMD Test Tweezers by Tim Blythman
  11. Feature: New 8-bit PICs from Microchip by Tim Blythman
  12. Feature: Dick Smith Contest Results by Nicholas Vinen
  13. Serviceman's Log: Gaining a superpower, at least temporarily by Dave Thompson
  14. PartShop
  15. Project: Capacitor Discharge Welder, Pt2 by Phil Prosser
  16. Vintage Radio: Monopole D225 radio by Associate Professor Graham Parslow
  17. Market Centre
  18. Advertising Index
  19. Notes & Errata: Dual Hybrid Power Supply, February 2022; Solid-State Tesla Coil, February 2022; Mysterious Mickey Oz, January 2022; Remote Control Range Extender, January 2022
  20. Outer Back Cover

This is only a preview of the April 2022 issue of Silicon Chip.

You can view 47 of the 120 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 "500W Power Amplifier, Part 1":
  • 500W Amplifier Module PCB [01107021 RevD] (AUD $25.00)
  • Hard-to-get parts for the 500W Amplifier (Component, AUD $180.00-200.00)
  • Parts collection for the 500W Amplifier (Component, AUD $235.00-250.00)
  • 500W Amplifier Module PCB pattern (PDF download) [01107021] (Free)
Articles in this series:
  • Fan Controller & Loudspeaker Protector (February 2022)
  • Amplifier Clipping Indicator (March 2022)
  • 500W Power Amplifier, Part 1 (April 2022)
  • 500W Power Amplifier, Part 2 (May 2022)
  • 500W Power Amplifier, Part 3 (June 2022)
Articles in this series:
  • The History of Transistors, part one (March 2022)
  • The History of Transistors, Pt2 (April 2022)
  • The History of Transistors, Pt3 (May 2022)
Items relevant to "Railway Semaphore Signal":
  • Model Railway Semaphore Signal control PCB [09103221] (AUD $2.50)
  • Model Railway Semaphore Signal blade PCB [09103222] (AUD $2.50)
  • PIC16F88-I/P programmed for the Model Railway Semaphore Signal [0910322A.HEX] (Programmed Microcontroller, AUD $15.00)
  • Firmware for the Model Railway Semaphore Signal [0910322A.HEX] (Software, Free)
  • Model Railway Semaphore Signal PCB patterns (PDF download) [09103221-2] (Free)
Videos relevant to "Railway Semaphore Signal":
  • Model Railway Semaphore Signal
Items relevant to "Update: SMD Test Tweezers":
  • SMD Test Tweezers PCB set [04106211+04106212] (AUD $10.00)
  • PIC16F15214-I/SN programmed for the Improved SMD Test Tweezers [0410621B.HEX] (Programmed Microcontroller, AUD $10.00)
  • 64x32 white OLED screen (0.49-inch, 1.25cm diagonal) (Component, AUD $10.00)
  • Improved SMD Test Tweezers kit (Component, AUD $35.00)
  • Firmware for the Improved SMD Test Tweezers [0410621B.HEX] (Software, Free)
  • SMD Test Tweezers PCB patterns (PDF download) [04106211/2] (Free)
Items relevant to "Capacitor Discharge Welder, Pt2":
  • Capacitor Discharge Welder Power Supply PCB [29103221] (AUD $5.00)
  • Capacitor Discharge Welder Control PCB [29103222] (AUD $5.00)
  • Capacitor Discharge Welder Energy Storage Module PCB [29103223] (AUD $3.50)
  • IRFB7434(G)PBF‎ N-channel high-current Mosfet (Source component, AUD $5.00)
  • Hard-to-get parts & PCB for the Capacitor Discharge Welder Energy Storage Module (ESM) (Component, AUD $20.00)
  • Hard-to-get parts & PCB for the Capacitor Discharge Welder Power Supply (Component, AUD $25.00)
  • Validation spreadsheets and updated drilling diagram for the CD Spot Welder (Software, Free)
  • Capacitor Discharge Welder PCB patterns (PDF download) [29103221-3] (Free)
Articles in this series:
  • Capacitor Discharge Welder, part one (March 2022)
  • Capacitor Discharge Welder, Pt2 (April 2022)

Purchase a printed copy of this issue for $11.50.
APRIL 2022 ISSN 1030-2662 04 9 771030 266001 $ 50* NZ $1290 11 500 INC GST POWER WATTS AMPLIFIER DELIVERS 500W RMS INTO A 4Ω LOAD The History of Transistors Part Two siliconchip.com.au Geiger Counters and Measuring Radioactivity Australia's electronics magazine April 2022  1 Rosehill Gardens , Sydney – 5-6 A pril INC GST