The voice amp is just a $10 Gas mask voice amp I found on ebay. I just used a hotglue gun then glued the mic and box in the helmet. As far as Vader's Iron Lung sound (that's what I call it). I bought the cheap Darth Vader breathing module sold by Rubies at most costume shops. Walmart will sell it around Halloween. If you open it up there is one resistor on the Circuit board. Change it out to a 400 Ohm resistor. You can even try others. I think if you go more then 400 it won't sound right. I had a movie clip that I compared it to and kept going up in ohms until it was close as I can get it. I also removed the switch (which you have to hold to make the sound stay on) and added a simple on/off toggle switch.
When I get time I will take pictures as I am actually modding 2 that I have for other people.
As far as making the 3 red lights on Vader's chest box blink correctly I built a 3 bit binary count down circuit. The only thing is it is hard to get your hands on a j/k flip flop IC chip and it is CMOS or highly suseptable to being ruined by ESD or EMP. When building it you must use a grounded wrist strap.
If anyone wants the Blink Circuit, just reply with an email address.
All the parts are listed on the schematic and most can be bought at my favorite sight for cheap electronic parts: minimum of $10 order.
http://www.goldmine-elec.com/
Bookmarks