After years of waiting to find the right hardware, I have finally found the time and the opportunity to build my own digital mechanical clock that uses absolutely no transistors or ICs. Its technology is reminiscent of the early relay computers from many decades ago. It uses 67 relays arranged in such a way to create 21 identical flip-flop logic circuits.
Call me biased, but I think everyone should start their oscilloscope journey with an analog. Not only does learning how to use its many knobs and switches give you a fantastic skill, taking it apart for repair or curiosity becomes a new and detailed lesson each and every time you open it. Not to mention that most analogs are significantly cheaper then their digital counterparts, especially when you are concerned about bandwidth on a budget. Need long-term digital storage (DSO)? Just stick a camera in front of your analog oscilloscope and you’re golden.