There was a least one Australian company that developed the battery-powered triode valve TRF wireless receiver of the early 1920s to its limit: UDISCO, the United Distributing Company. When advertising, UDISCO would often draw attention to the single dial control they used. by Dennis Jackson
Whether you want to protect against COVID-19 or just give all your gadgets a deep clean while you’re stuck at home, now’s the ideal time! Here’s how you can safely clean your tech gadgets, without damaging anything.