Daily Archives: March 23, 2019

Teardown: Bosch DS835 TriTech PIR/Microwave Motion Detector

One of the things I bought home from the recent Wyong Field Day was a Bosch DS835 TriTech motion detector. While the box was beat-up, the unit inside looked clean and the seller wanted just $5 for it, so I … Continue reading

Posted in Electronics | Tagged , , | Leave a comment

Project: HX3208 (CD9088-based) SMD “Micro” FM Radio Kit

The kit drawer is like the bottomless-pit of entertainment, except that it does have a bottom and I’m slowly reaching it. You can tell because these are the kits that I’ve left behind for a later day – perhaps out … Continue reading

Posted in Electronics | Tagged , , , , | Leave a comment

After the Beep: DSE F-8011 & ion by Telstra Digital Answering Machines

The humble voice call by telephone has been with us for many years, but with the popularity of land-lines fading, it seems that the traditional voice call may be headed towards obscurity. As a synchronous communication, it requires both caller … Continue reading

Posted in Audio, Electronics, Salvage, Telecommunications | Tagged , , , , , | Leave a comment