LM386 Feedback Oscillator - Strip Board Layout
Here is the strip board layout diagram for a simple oscillator circuit based on the noise device featured in the accompanying video. This circuit uses a feedback loop to turn the LM386 amp into a single voice oscillator.
This download includes 3 files:
1 x .png
1 x .pdf
1 x .svg
All parts are clearly labelled, with an itemised list of suggested component values. At the bottom of the page I have included some brief instructions and suggestions for experimentations with component values.
This layout is intended to give you a simple oscillator with controllable pitch via the 1K potentiometer.
Please note: the momentary switch, which was included in the original design has been omitted from this layout. If you would like to add this feature, I recommend trying some circuit bending - i.e. randomly connecting various points of the circuit to see what happens. You could experiment with different resistors/capacitors and diodes, and if you find something interesting, add that connection via a switch.
I have been working on a dual voice version (based on this basic design), but with added CV and switches to affect the circuit's behaviour. I will provide strip board layout designs for this in the near future, but it is proving to be a tricky little beast to get under control, so it is still a work in progress!