The search returned 10 articles:

  1. February 2022: Project: Fan Controller & Loudspeaker Protector by John Clarke, PCBs: SC 01111211 [print issue] [online issue]
  2. February 2022: Project: Fan Controller & Loudspeaker Protector by John Clarke, PCBs: SC 01111211, 9 shop items [print issue] [online issue]
  3. March 2022: Project: Amplifier Clipping Indicator by John Clarke, kits: Amplifier Clipping Indicator, PCBs: SC 01112211 [print issue] [online issue]
  4. March 2022: Project: Amplifier Clipping Indicator by John Clarke, kits: Amplifier Clipping Indicator, PCBs: SC 01112211, 6 shop items [print issue] [online issue]
  5. April 2022: Project: 500W Power Amplifier, Part 1 by John Clarke, kits: SC6019, PCBs: SC 01107021 [print issue] [online issue]
  6. April 2022: Project: 500W Power Amplifier, Part 1 by John Clarke, kits: SC6019, PCBs: SC 01107021, 4 shop items [print issue] [online issue]
  7. May 2022: Project: 500W Power Amplifier, Part 2 by John Clarke, kits: SC6019, PCBs: SC 01107021 [print issue] [online issue]
  8. May 2022: Project: 500W Power Amplifier, Part 2 by John Clarke, kits: SC6019, PCBs: SC 01107021, 4 shop items [print issue] [online issue]
  9. June 2022: Project: 500W Power Amplifier, Part 3 by John Clarke, kits: SC6019, PCBs: SC 01107021 [print issue] [online issue]
  10. June 2022: Project: 500W Power Amplifier, Part 3 by John Clarke, kits: SC6019, PCBs: SC 01107021, 4 shop items [print issue] [online issue]