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--- projects:vellemanmod [2011/03/04 01:13]
Jakob Schytz created
+++ projects:vellemanmod [2013/04/08 15:47] (current)
@@ Line 1: / Line 1: @@
+==== Multivibrator mod ====
+{{:projects:velleman_kit.jpg?480|Boring non-awesome stock kit}}
+Got hold of a Velleman kit for a Flashing LED set.
+The kit is essentially an astable multivibrator.
+The kit in it self is simple, and a great way for me to learn basic soldering and so on.
+But the kit lacks in way of usability, and I have a science project coming up with soundwaves. So it would be a great way to show some basic frequency changes in sound and how it affects the audible sound.
+First of all, the diodes blink at a very slow rate. This frequency is far beyond the humans perception range. The problem is easily solved with two new 100n capacitors instead of the standard 10u which allow for a much higher frequency range for the two trimmers.
+Schematics:
+{{:projects:velleman_mod_schematic.jpg?480|Road to awesomeness}}
+Finished product:
+{{:projects:finished_velleman_mod.jpg?480|Talk about recycling}}