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1Download, check, purchase, prepare
I have recently started finding all the modules used to make this project, and if I am lucky the schematics or references for them. Documentation is still a work in progress so not all steps are there just yet.
- Download the KiCAD schematic files and/or the PNG images of the circuitry.
- Check the BOM (Bill of Materials) and make a list of parts which the project requires.
- Purchase the parts from your favourite online or otherwise-based electronics retailer.
- Prepare for what is to come.. Board layout, soldering, testing, thoroughly annoying anyone who doesn't appreciate what you have created.
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2Prototype
Stick prongy-leggy things into a breadboard anywhere you like, as long as you follow the dot-to-dot schematic. Try each section at a time, and try again.
- Electret microphone amplifier. Showed directly connected to speaker for testing.
- Sine wave generator - Future Update
- Ring Modulator using LT700 transformers. UPDATE: using Vigortronix VTX-101-1604 transformers instead.
- Speaker & Amp - Almost identical to the microphone amplifier - Future Update
- *LED fade-effect or light-organ. Operates much like the light emitting from a Dalek's plunger (** *Optional) (**Optional)
Probable Tip: If you haven't got any testing gear you could make the amplifier first and use it to test the noisy parts individually. Or just stick a speaker on the output seeing as though the LM386 is usually happy with that.
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3Don't get too excited, it will all fall apart.
So hopefully your rats-nest works and is gleefully exciting you. You have probably noticed bits constantly falling off. It is time to painstakingly recreate each part ALL OVER AGAIN but on [Vero] strip board. It's a good thing though, it shouldn't fall apart again if you do it well.
Don't try to follow my examples precisely, I have a habit of using boards which look alright at the start but instantly become too narrow.
PICTURES OF SOLDERED STUFF
The light-organ or single LED VU meter.
The Ring-Modulator. I used 1/4" TS Jack plugs on mine for testing. Not entirely necessary but it was fun using a keyboard/PA amp much to the bemusement of everyone present.
UPDATE: using Vigortronix VTX-101-1604 transformers for ring modulator.
More to follow...
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