While working on a Grundig T20 tuner, I encountered some bad Red Plastic Can Roederstein Capacitors. There were enough of them to draw some conclusions.
This is not a paid or otherwisely supported review. Disassembling the power supply, some improvements, some (non-scientific) tests. Finally, using the power supply for an audio amplifier.
Assembing another kit by JYE Tech, the FG085 Arbitrary Function Generator, complete with faceplate and epic fail power supply. FG085 Part 2: COMING SOON. DSO138 mini oscilloscope: https://youtu.be/...
Finally I got a DAT recorder to try out the Digital Audio Tape system myself. This video documents me making my first (test) recording. All the info missing in this video: https://en.wikipedia.org/...
How to get a tape off the reel fast, but without making a mess! NOTE: I know there are methods of baking or freezing or treating squeaky tapes with chemicals to make them playable again. This tape ...
The DSO138 is a 20€ digital oscilloscope kit made by JYE Tech. This video describes the assembly process and shows the first test of the finished device.