The search returned 2 articles:

  1. October 2018: Project: Opto-Isolated Mains Relay by Tim Blythman, kits: Altronics K2930, PCBs: 10107181/10107182 [print issue] [online issue]
  2. October 2018: Project: Opto-Isolated Mains Relay by Tim Blythman, kits: Altronics K2930, PCBs: 10107181/10107182, 2 shop items [print issue] [online issue]