Silicon ChipContents - April 2012 SILICON CHIP
  1. Outer Front Cover
  2. Contents
  3. Publisher's Letter: Induction motor speed controller an intriguing design exercise
  4. Project: 1.5kW Induction Motor Speed Controller, Pt.1 by Andrew Levido
  5. Project: SoftStarter: Taming The Surge Current Menace by Nicholas Vinen
  6. Project: A 6-Decade Resistance Substitution Box by Jim Rowe
  7. Review: MikroElektronika EasyPIC v7 Development Board by Nicholas Vinen
  8. Project: Ultra-LD Mk.3 135W/Channel Stereo Amplifier, Pt.2 by Greg Swain
  9. Vintage Radio: Philips 196A 4-valve portable receiver by Rodney Champness
  10. PartShop
  11. Order Form
  12. Advertising Index
  13. Outer Back Cover

This is only a preview of the April 2012 issue of Silicon Chip.

You can view 24 of the 96 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 "1.5kW Induction Motor Speed Controller, Pt.1":
  • 1.5kW Induction Motor Speed Controller PCB [10105122] (AUD $35.00)
  • dsPIC33FJ64MC802-E/SP programmed for the 1.5kW Induction Motor Speed Controller [1010512B.HEX] (Programmed Microcontroller, AUD $25.00)
  • SL32 10015 NTC thermistor (Component, AUD $7.00)
  • Firmware for 1.5kW Induction Motor Speed Controller [1010512B.HEX] (Software, Free)
  • 1.5kW Induction Motor Speed Controller panel artwork and heatsink drilling template (PDF download) (Free)
Articles in this series:
  • 1.5kW Induction Motor Speed Controller, Pt.1 (April 2012)
  • 1.5kW Induction Motor Speed Controller, Pt.2 (May 2012)
Items relevant to "SoftStarter: Taming The Surge Current Menace":
  • Soft Start Surge Suppressor PCB [10104121] (AUD $5.00)
  • SL32 10015 NTC thermistor (Component, AUD $7.00)
  • Soft Start Surge Suppressor PCB pattern (PDF download) [10104121] (Free)
Items relevant to "A 6-Decade Resistance Substitution Box":
  • Resistance Decade Box PCB [04104121] (AUD $12.50)
  • Resistance Decade Box panel/lid [04104122] (PCB, AUD $15.00)
  • Resistance Decade Box PCB pattern (PDF download) [04104121] (Free)
  • Resistance Decade Box panel artwork (PDF download) (Free)
Items relevant to "Ultra-LD Mk.3 135W/Channel Stereo Amplifier, Pt.2":
  • Ultra-LD Mk3 200W Amplifier Module PCB [01107111] (AUD $15.00)
  • Input Switching Module PCB for the Low Noise Preamplifier [01111112] (AUD $15.00)
  • Input Selection Pushbutton PCB for the Low Noise Preamplifier [01111113] (AUD $5.00)
  • Ultra-LD Mk3/Mk4 Amplifier Power Supply PCB [01109111] (AUD $15.00)
  • Preamp & Remote Volume Control PCB for the Ultra-LD Mk3 [01111111] (AUD $30.00)
  • Ultra-LD Mk.3 Power Supply PCB pattern (PDF download) [01109111] (Free)
  • Ultra-LD Mk.3 Amplifier PCB pattern (PDF download) [01107111] (Free)
Articles in this series:
  • Ultra-LD Mk.3 135W/Channel Stereo Amplifier, Pt.1 (March 2012)
  • Ultra-LD Mk.3 135W/Channel Stereo Amplifier, Pt.2 (April 2012)
  • Ultra-LD Mk.3 135W/Channel Stereo Amplifier, Pt.3 (May 2012)

Purchase a printed copy of this issue for $10.00.
Contents SILICON CHIP www.siliconchip.com.au Vol.25, No.4; April 2012 Features 36 Why Is The 50Hz AC Mains Waveform Distorted? Theory tells us that the 50Hz AC mains waveform is a pure sinewave but in practice it’s often distorted because the peaks have been clipped off. Here’s why – by Leo Simpson 42 Review: MikroElektronika EasyPIC v7 Development Board It provides an easy way to program & debug 8-bit PIC micros & can be used with the C, Pascal & BASIC programming languages – by Nicholas Vinen 1.5kW Induction Motor Speed Controller – Page 16. 80 Q & A On The Maximite Microcomputer A look at the six most common problems encountered by constructors plus some questions & answers on this popular design – by Geoff Graham Pro jects To Build 16 1.5kW Induction Motor Speed Controller, Pt.1 Versatile unit will drive virtually any modern 3-phase induction motor or any single-phase motor that does not contain a centrifugal switch. It’s rated at up to 1.5kW (2HP) & can control speed over a wide range – by Andrew Levido 28 SoftStarter: Taming The Surge Current Menace SoftStarter: Taming The Surge Current Menace – Page 28. 28. 38 A 6-Decade Resistance Substitution Box 6-Decade Resistance Substitution Box – Page 38. Do you get a juicy “splattt” from your mains power point when you plug in a large plasma TV set or some other piece of gear? Our SoftStarter solves this problem while having no effect on appliance performance – by Nicholas Vinen It’s easy to build and lets you select from thousands of different resistance values between 10Ω and 10MΩ using six rotary switches. When you have found the optimum, just read off the value on the switches – by Jim Rowe 60 Ultra-LD Mk.3 135W/Channel Stereo Amplifier, Pt.2 Second article on our new high-performance stereo amplifier completes the assembly and describes the test & adjustment procedure – by Greg Swain Special Columns 54 Serviceman’s Log The earthquakes finally killed my TV set – by the Serviceman 70 Circuit Notebook (1) Using Mosfets For Reverse Polarity Protection; (2) Simple Water Level Alarm; (3) 433MHz Garage Door Position Monitor; (4) 12/24V Vehicle Instrument Panel 82 Vintage Radio Philips 196A 4-valve portable receiver – by Rodney Champness Departments   2   4 53 89 Publisher’s Letter Mailbag Product Showcase Order Form siliconchip.com.au 90 Ask Silicon Chip 94 Notes & Errata 95 Market Centre Ultra-LD Mk.3 135W/Channel Stereo Amplifier, Pt.2 – Page 60. Note: part 3 of the SemTest has been held over until May 2012. April 2012  1