@@ -17,6 +17,9 @@ From here I made new versions of the amplifier and 40106 oscillator circuits. I
Unfortunately the first prototypes I made of my two oscillator modules did not work properly at all. I learned that when the circuit is fully assembled, it's really really hard to figure out what small thing has gone wrong. I stitched them both again from scratch, and this time:
* In the picture below you can see that there are bits of thread that have been stitched around with black thread. This was an attempt to insulate one trace from another, where two threads needed to cross the same point but not make contact electrically. In my final versions I decided to do this by looping one thread through to the underside of the fabric instead.
* Loops: in my first prototype of the phase locked loop oscillator, I used a lot of tight loops () in the design of the stitching. It looked cool, but I realised afterwards that I had stitched a load of small inductors, and the result of this was that the circuit did not work at all :) Lesson learned. The picture below is of the first oscillator prototype I made, as I didn't take pictures of the initial phase locked loop prototype
